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Leiston Fortress (レイストン要塞) is the headquarters of the Royal Army of Liberl, located on the shore of Valleria Lake in the region of Zeiss, approximately 337 selge north of the City of Zeiss.

Maps[]

Overview
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Entrance
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Background[]

Main article: Hundred Days War
Hundred Days War 3 (FC)

General Morgan, Colonel Cassius Bright and Alan Richard of the Royal Army devising Liberl's counterattack from within the Leiston Fortress.

Within a month after the outbreak of the Hundred Days War, the Imperial Army of Erebonia had occupied nearly all of Liberl's territory except for Leiston Fortress and the Grancel region, which remained under control of the Royal Army of Liberl.

Unbeknownst to the Imperial Army, patrol airships were secretly being developed behind the walls of Leiston Fortress by Professor Albert Russell. Upon completion, they were dispatched by veteran commander General Morgan and directed under Cassius Bright's tactics to cut off the Imperial Army's communication and supply routes, separating the occupying forces into smaller divisions. A large scale counterattack was launched, with regions falling one by one back under liberlian control, and the war was tipped in Liberl's favor, until an agreement to end the war between Liberl and Erebonia was suddenly achieved.

Thanks to Leiston's opposition during the war, it now holds the reputation of being an impregnable fortress.

Trails in the Sky FC[]

Background[]

After the incident at the Central Factory where Professor Russell was kidnapped, Dorothy was able to take a photography of the same airship that took him away heading into Leiston Fortress. Once Estelle and Joshua approached the fortress, Major Cid refused any knowledge, but the gate malfunctioned in the same way as the Orbal Shutdown Phenomenon that the bracers had witnessed before.

Deducing that the professor was held in the fortress, the bracers and the engineers of the factory devised a plan to infiltrate Estelle, Joshua, Agate and Tita and rescue the professor. Once the four were hidden on a container taken to the fortress by Gustav and the Leibnitz, and avoided detection from bioscanners thanks to the professor's latest invention, they snuck into the research area and witnessed Colonel Richard and Captain Amalthea of the Intelligence Division trying to get the professor to experiment on the black orbment. He refused to cooperate, infuriated by the latter's apparent threat on Tita, and the Intelligence Division's commanders left the fortress to Grancel to continue their plans.

The rescue team took this chance to take down the guards and free the professor, but their escape route was cut off and they headed into the command center looking for a way out, where they met the Capua Family again in the dungeons. Unexpectedly, Major Cid called them into his office and revealed that Richard seized control of Leiston Fortress by holding hostage his family, as Cid was the garrison commander, and had done the same to other high ranking officers of the army, effectively starting a coup. Major Cid showed them an alternate escape route, hoping they'd be able to put a stop to the coup by warning Queen Alicia in time.

Enemies[]

Quests[]

Trails in the Sky SC[]

Background[]

After Richard's coup is thwarted, Cassius rejoins the army as a brigadier general and starts a large scale reorganization of the Royal Army from Leiston Fortress in order to purge the corruption and inefficacy that made the coup possible in the first place. Richard is imprisoned here for the time being, but the Capuas have managed to escape taking advantage of the chaos.

During Estelle's investigation into Ouroboros' action in the Zeiss region, she's invited to train with now Lieutenant Colonel Cid, and she and her companions are able to meet Cassius while placing a device to measure the earthquakes hitting the region. Later, Leiston Fortress is hit by a strong earthquake, caused by Walter's experiments with the Gospel, but fortunately any serious damage is prevented by Cassius' foresight.

Olivert Reise Arnor - SD (Ao)
Hello there, beautiful. May I have a moment of your time?
Please be aware spoilers for Trails in the Sky SC may be present in the following section. Hit [Show] on the right if the show must go on. Adios, amigos!

After the second coup attempt by the remnants of the Intelligence Division, Kanone Amalthea is taken to Leiston Fortress for interrogation, where Cassius brings Richard to convince her to reveal what she knows about Ouroboros.

During the country-wide Orbal Shutdown Phenomenon, Leiston Fortress receives a Zero Field Generator to restore communications, and Cassius has the Arseille fitted with one strong enough to keep it flight-capable in order to tilt the negotiations at the Haken Gate Standoff to Liberl's favor as he and Olivert Reise Arnor planned.

There we go, the end of spoilers. Thank you for your time!

Enemies[]

Quests[]

Fishing[]

Location Fish Bait
Fishing Spot - Leiston Fortress Moat (SC)
Leiston Fortress Moat
Crab Earthworm (27.3%), Polychaete (100%), Shrimplet (62.5%)
Dace River Bug (11.1%), Roe (10%), Red Flies (50%)
Rainbow Trout Earthworm (27.3%), River Bug (22.2%), Roe (23.3%)
Rockeater Earthworm (18.2%), River Bug (18.5%), Roe (13.3%), River Snail (100%), Frog (100%), Yamany (100%), Dace (60%), Crab (100%)
Salmon River Bug (22.2%), Roe (13.3%), Dace (40%)
Trout Earthworm (27.3%), Roe (13.3%), Red Flies (16.7%), Shrimplet (37.5%)
Yamany River Bug (25.9%), Roe (26.7%), Red Flies (33.3%)

Trails in the Sky the 3rd[]

Background[]

In the Sixth Plane of Phantasma, the third monument requires Richard, considered successor to the Divine Blade. The monument takes him and Kevin to a copy of Leiston Fortress, named the Impregnable Fortress.

At first, only the Research Wing is accessible, where they fight a copy of Maximillian Cid and his soldiers. Cid remembers Kevin from their visit into the Primal Ground where the Recluse Cube was stored, and after his defeat, expresses his regret at Richard leaving the army before giving him the key to the Barracks.

Inside the barracks, they find Kanone Amalthea and Special Ops Soldiers. After the battle, Richard thanks Kanone and takes the key to the Command Center.

At the Command Center, first they find General Morgan, angry that he can't go against the Lord of Phantasma's will. Morgan leaves what he wants to say to Richard to the Third Guardian waiting at the top floor of the Command Center, Cassius Bright.

They manage to defeat Cassius, and Richard is finally able to clear his hesitations about his path. After some words with the rest, Cassius asks Kevin if he now knows the identity of the Lord, and tells him that he cannot be truly alone before vanishing.

Maps[]

Outside
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Soldat Army Road
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Courtyard
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Barracks
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Command Center 1F
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Command Center 2F
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Command Center 3F
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Landing Port
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Enemies[]

Enemy Courtyard Research Wing Barracks Command Center
Ash Saber
Attack Doberman W/ Royal Army Soldier W/ Royal Army Officer - Sword/Gun
Bloody Saber Chest 4
Cobalt Saber
Royal Army Officer - Sword/Gun
Royal Army Soldier W/ Attack Doberman Story W/ Royal Army Officer - Sword/Gun
Solid Dozer W/ Ash Saber, Attack Doberman, Bloody Saber, Cobalt Saber Chest 4
Lt. Colonel Cid Story
Kanone Story
Photon Laws W/ Summoned by Kanone
Heavily Armed Soldier Story
Special Ops - Claws Story
Special Ops - Gun Story
Morgan Story
Royal Army Officer - Sword/Gun Story
Cassius Story

Treasure Chests[]

Area Key Contents Chest Quote
Road 1 Potion (Sora Item) Zeram Capsule You've taken away my one purpose in life.
Courtyard 2 Accessory (Sora Item) Master Beads No, you can't return it. You don't even have the receipt!
Barracks 3 Potion (Sora Item) Tear All Balm There's some green hair inside. The chest prays to Aidios this sinful
priest gets his just desserts.
4 Key (Sora Item) B-01 Key[note 1] Monsters: Bloody Saber, Solid Dozer (x2), Attack Doberman (x2)
What if the world you live in is actually a gigantic chest?
5 Bo Staff (Sora Weapon) Force Flag Isn't it convenient that you always find weapons that someone in your
group specializes in? You're welcome, by the way.
Command Center B1F 6 Earth (Sora Quartz) Topaz Gem Thieving attempt failed! -20 Charisma
7 Potion (Sora Item) EP Charge III Kevin briefly considers taking the chest as a new weapon, but it's not
quite bow-y enough.
8 Food To Go (Sora Item) Fruity Temptation You realize that was in my stomach until just now, right? Yuck!
9 Key (Sora Item) C-01 Key[note 1] A small plate of windowglass lies on the bottom of the empty box. Alas,
another unexpected chest pane!
Command Center 1F 10 Food To Go (Sora Item) Amazing & Sparkling You see a human skeleton that wasn't in there before.
11 Potion (Sora Item) Curia Balm Excuse me! Could you scratch my back, please?
12 Time (Sora Quartz) Blind 2 You're causing terrible, terrible damage across this kingdom. How does
it feel?
13 Potion (Sora Item) Zeram Powder Nice job, Pandora.
14 Potion (Sora Item) Tearal Balm If I didn't want to be opened, I would have taken a job as a coffin.
15 Wind (Sora Quartz) Wind Gem Did you hear about the two bracers in high school? They went to Shining
Prom together.
16 Accessory (Sora Item) Long Barrel 3 ACERBIC TOMATOES ARE PEOPLE
Command Center 2F 17 Potion (Sora Item) EP Charge III My vocal instructor told me I should use my chest voice more...
18 Key (Sora Item) C-02 Key[note 1] Fine. Take it! I don't even want it anymore!
19 Earth (Sora Sepith)Water (Sora Sepith)Fire (Sora Sepith)Wind (Sora Sepith)Time (Sora Sepith)Space (Sora Sepith)Mirage (Sora Sepith) All sepith ×200 I should have listened to my parents and become a cupboard instead.
20 Potion (Sora Item) Celestial Balm This chest is empty, but it smells pleasantly minty.
21 Potion (Sora Item) Curia Balm Y'know what song I have stuck in my head? Neither do I.
22 Accessory (Sora Item) Crest Charm+ This chest is covered with a thick layer of funky-smelling mildew.
But you're gonna wear the Crest Charm anyway, aren't you?
23 Earth (Sora Sepith)Water (Sora Sepith)Fire (Sora Sepith)Wind (Sora Sepith)Time (Sora Sepith)Space (Sora Sepith)Mirage (Sora Sepith) All sepith ×200 This chest contains the meaning of life.
24 Potion (Sora Item) S-Tablet Now that I'm empty, have you considered depositing all your mira inside?
Command Center 3F 25 Potion (Sora Item) Zeram Powder If only I'd come with an explosive trap...
26 Potion (Sora Item) Celestial Balm You find a torn note that says: 'chest No. 53 wuz here'
27 Time (Sora Quartz) Onyx Gem I hope you at least made sure to not leave fingerprints on the crime scene.
28 Earth (Sora Sepith)Water (Sora Sepith)Fire (Sora Sepith)Wind (Sora Sepith)Time (Sora Sepith)Space (Sora Sepith)Mirage (Sora Sepith) All sepith ×200 Did you know, the average human body contains enough bones to make
an entire human skeleton?
29 Potion (Sora Item) Tear All Balm There are mustard stains in this chest.
30 Water (Sora Quartz) Yin-Yang I have a cousin in Erebonia. He doesn't talk much.
31 Key (Sora Item) C-03 Key[note 1] Give me loot or give me death.
32 Potion (Sora Item) Curia Balm Nope. Joshua isn't in here.
Landing Port 33 Accessory (Sora Item) Super Gladiator Belt They say it's what's on the inside that counts. Now look what you've
done.
34 Accessory (Sora Item) Super Gladiator Headband I'm telling my mommy on you!
  1. 1.0 1.1 1.2 1.3 These chests are required to complete The Sixth Plane.

Quests and Doors[]

  • The Sixth Plane: The Impregnable Fortress is the third of four trials.
  • Star Door 12: Found at the end of the east corridor of the Command Center's 1st floor.

Monuments[]

Impregnable Fortress/Command Center 2F/3F[]

Monument
石碑
Items Sold
Bowgun (Sora Weapon) Eclipse Gear STR+900/RNG+6 8000 mira
Templar Sword (Sora Weapon) Triptych Loa STR+1000/RNG+2 8000 mira
Bo Staff (Sora Weapon) Corkswain STR+900/RNG+2 8000 mira
Twin Swords (Sora Weapon) Kusanagi Blades STR+900 8250 mira
Whip (Sora Weapon) Myrrh Thorns STR+900/RNG+3 3800 mira
Orbal Gun (Sora Weapon) Peace Breaker STR+900/RNG+5 8550 mira
Rapier (Sora Weapon) Wing Blade STR+900 8000 mira
Greatsword (Sora Weapon) Galatyn STR+1050 7250 mira
Orbal Cannon (Sora Weapon) Sentinel STR+900/RNG+4/Area (S) 8800 mira
Gauntlets (Sora Weapon) Moon Claws STR+950 4800 mira
Sword (Sora Weapon) Yaegaki STR+950 8500 mira
Scythe (Sora Weapon) Camellia Scythe STR+950 7800 mira
Armour (Sora Item) Amalgam Guard DEF+900 12000 mira
Boots (Sora Item) Synchrotrons DEF+140/MOV+4 4000 mira
Accessory (Sora Item) T-Anklet Prevents Freeze/Petrify 3000 mira
Accessory (Sora Item) Master Beads Prevents Sleep/Confuse 3000 mira
Accessory (Sora Item) Tornado Fan Prevents Poison/Freeze 3000 mira
Accessory (Sora Item) Lebensborn Prevents Petrify/Deathblows 4000 mira
Potion (Sora Item) Tear Balm Heals 2000HP 200 mira
Potion (Sora Item) Teara Balm Heals 5000HP 800 mira
Potion (Sora Item) Tearal Balm Heals 10000HP 2000 mira
Potion (Sora Item) Purging Balm Heals 2000HP/Cures Poison/Seal/Blind 200 mira
Potion (Sora Item) Softening Balm Heals 2000HP/Cures Freeze/Petrify 200 mira
Potion (Sora Item) Smelling Salts Heals 2000HP/Cures Confuse/Sleep/Faint 200 mira
Potion (Sora Item) Reviving Balm Cures K.O./Heals 1000HP 1000 mira
Potion (Sora Item) S-Tablet Cures Lowered Statuses/Heals 4000HP 800 mira
Potion (Sora Item) Insulating Tape Cures Mute 100 mira
Potion (Sora Item) EP Charge Restores 100EP 500 mira
Potion (Sora Item) EP Charge II Restores 300EP 1000 mira
Sepith Trade
Earth (Sora Sepith) = 10 mira Water (Sora Sepith) = 10 mira Fire (Sora Sepith) = 10 mira Wind (Sora Sepith) = 10 mira
Time (Sora Sepith) = 10 mira Space (Sora Sepith) = 30 mira Mirage (Sora Sepith) = 20 mira

Monument
石碑
Quartz Synthesis
Earth (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Defense 4 DEF+12%/STR-7% Earth (Sora Sepith)×300
Earth (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Topaz Gem DEF+15%/STR-9% (Earth (Sora Quartz) Defense 5) Earth (Sora Sepith)×1000
Earth (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Poison Poison enemy with 10% success. Earth (Sora Sepith)×100
Earth (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Petrify Petrify enemy with 10% success. Earth (Sora Sepith)×200
Earth (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Mute Mute enemy with 10% success. Earth (Sora Sepith)×50
Water (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) HP 4 Max HP+12% Water (Sora Sepith)×300
Water (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Water Gem Max HP+15% (Water (Sora Quartz) HP 5) Water (Sora Sepith)×1000
Water (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Mind 4 ATS+12%/ADF-4 Water (Sora Sepith)×300
Water (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Sapphire Gem ATS+15%/ADF-5 (Water (Sora Quartz) Mind 5) Water (Sora Sepith)×1000
Water (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Freeze Freeze enemy with 10% success. Water (Sora Sepith)×150
Fire (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Attack 4 STR+12%/DEF-7% Fire (Sora Sepith)×300
Fire (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Ruby Gem STR+15%/DEF-9% (Fire (Sora Quartz) Attack 5) Fire (Sora Sepith)×1000
Fire (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Seal Seal enemy crafts with 10% success. Fire (Sora Sepith)×50
Wind (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Shield 4 ADF+75/ATS-7% Wind (Sora Sepith)×300
Wind (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Emerald Gem ADF+150/ATS-9% (Wind (Sora Quartz) Shield 5) Wind (Sora Sepith)×1000
Wind (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Evade 4 AGL+4 Wind (Sora Sepith)×300 Mirage (Sora Sepith)×100
Wind (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Wind Gem AGL+5 (Wind (Sora Quartz) Evade 5) Wind (Sora Sepith)×1000 Mirage (Sora Sepith)×100
Wind (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Sleep Put enemy to sleep with 10% success. Wind (Sora Sepith)×50
Wind (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Impede 4 Prevent enemy arts and crafts with 25% success rate. Wind (Sora Sepith)×800 Space (Sora Sepith)Mirage (Sora Sepith)×600
Wind (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Wood Gem Prevent enemy arts and crafts with 30% success rate. (Wind (Sora Quartz) Impede 5) Wind (Sora Sepith)×1200 Space (Sora Sepith)Mirage (Sora Sepith)×850
Time (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Action 4 SPD+40%/MOV-1 Time (Sora Sepith)×600
Time (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Onyx Gem SPD+50%/MOV-2 (Time (Sora Quartz) Action 5) Time (Sora Sepith)×1000
Time (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Blind Blind enemy with 10% success. Time (Sora Sepith)×50
Time (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Deathblow 1 Kill enemy with 10% success. Time (Sora Sepith)×200
Time (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Deathblow 2 100% kills enemy but quartz breaks. Time (Sora Sepith)×50
Time (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Cast 2 Time to cast arts is greatly cut. Time (Sora Sepith)×200
Space (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Move 3 MOV+3 Space (Sora Sepith)×400
Space (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Strike Critically strike with 10% success. Space (Sora Sepith)×120
Space (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) EP Cut 4 Arts' EP cost-40%. Space (Sora Sepith)×600 Time (Sora Sepith)Mirage (Sora Sepith)×400
Space (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Gold Gem Arts' EP cost-50%. (Space (Sora Quartz) EP Cut 5) Space (Sora Sepith)×1000 Time (Sora Sepith)Mirage (Sora Sepith)×600
Space (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Eagle Eye Can see enemies from a distance. Space (Sora Sepith)Mirage (Sora Sepith)×50
Mirage (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) EP 4 Max EP+12% Mirage (Sora Sepith)×300 Time (Sora Sepith)Space (Sora Sepith)×200
Mirage (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Silver Gem Max EP+15% (Mirage (Sora Quartz) EP 5) Mirage (Sora Sepith)×1000 Time (Sora Sepith)Space (Sora Sepith)×400
Mirage (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent) Hit 4 DEX+20/AGL-4 Mirage (Sora Sepith)×300
Mirage (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent)Slot Upgrade (Sora Percent) Mirage Gem DEX+25/AGL-5 (Mirage (Sora Quartz) Hit 5) Mirage (Sora Sepith)×1000
Mirage (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Confuse Confuse enemy with 10% success. Mirage (Sora Sepith)×200
Mirage (Sora Quartz) Slot Upgrade (Sora Percent)Slot Upgrade Off (Sora Percent)Slot Upgrade Off (Sora Percent) Information Be able to perceive enemy status. Mirage (Sora Sepith)×50
Sepith Trade
Earth (Sora Sepith) = 10 mira Water (Sora Sepith) = 10 mira Fire (Sora Sepith) = 10 mira Wind (Sora Sepith) = 10 mira
Time (Sora Sepith) = 10 mira Space (Sora Sepith) = 30 mira Mirage (Sora Sepith) = 20 mira

Gallery[]

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