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Xeno (ゼノ), also known as the Trap Master (罠使い(トラップマスター)), is a regimental commander of Zephyr. He is usually seen with his companion Leonidas. During battles he wields a blade rifle.


Xeno is a tall veteran jaeger who speaks in a distinct dialect. His expertise is in wielding a huge Blade Rifle for accurate close and long range combat while strategising orbal mine formations which garnered him a reputation as the "Trap Master."

Xeno's weapon is an 'S' weapon developed by the Black Workshop. It boasts an exaggerated size, including parts reminiscent of a sniper rifle and large single-edged blade.


Xeno is a skinny built man, with tan yellow-emerald hair and a wolf's tail style ponytail. He also wears violet spec glasses over his violet color eyes. Xeno typically wears the Zephyr uniform: a dark grey-violet coat with sleeves rolled up to the elbows; with silver lining designs, an emerald turtle-neck shirt underneath, tan bare baggy pants, dark black boots and hand to wrist cover fingerless black gloves with straps.


Personality-wise, he portrays himself as an easygoing individual, frequently making small jokes. Despite his optimistic outlook and friendly exterior, he retains the typical aspects of being a jaeger, becoming serious when a job needs to be completed. It is clear that he has a caring side for his comrades, especially Fie, who looks out for her: even to the point of taking the role of an over-protective father-figure (which he shares with Leonidas) when chatting with Rean about the pair's working relationship and how close they are,enquiring about anything that might give him cause for concern.


In S.1196, Xeno worked as an assassin who was sent to assassinate Rutger Claussell.[Note 1] He not only failed his mission, but was instead invited for a drink with his target. Xeno's former organisation started targetting him instead, but Rutger stepped in and completely destroyed said organisation. Xeno joined Zephyr, which he saw as the family he had been looking for.[3]

Trails of Cold Steel II

Although first shown in Trails of Cold Steel, Xeno is formally introduced alongside his companion Leonidas in Act 1: "Ashen Chronicles". Serving the Noble Alliance during the Erebonian Civil War, they fight with Class VII at the ruins of Garrelia Fortress and soon thereafter in Ymir. After the Intermission: "Aboard the Pantagruel", Xeno and Leonidas continue their work in western Erebonia until they're called back by Cayenne on December 30 to defend the second stratum of the Infernal Castle, where they faced off against Fie Claussell and the rest of Class VII once more. They revealed to Fie that other Zephyr members had split up on Rutger's orders and that they were working on bringing him back from the grave.[4]

Trails of Cold Steel III and IV

Following Rutger's revival, their work throughout Erebonia leads them to several counters with Class VII, revealing that they only cooperated with the Noble Alliance at the request of their "true employer",[5] the Gnomes, in order to gather intelligence. He continues to work with Leonidas, this time as members of Zephyr, to help Alberich and Giliath Osborne spur on the Great Twilight. After preparing the stage for the Rivalry between Rutger and Rean Schwarzer by fighting Class VII, he and Leonidas side with them for the infiltration of the Salt Pales.

Trails into Reverie

At an unspecified time, Xeno acquires a new experiential mine that detonates upon exposure to magical power instead of physical power- a 'magic mine' from Neinvalli, where he trades it for a rare out-of-production golden Mishy statue. He states he acquired the statue as payment from a previous contract with Chairman Hartmann to escort him in his exile. Whilst shopping for ammunition, he explains that he and Leonidas had been all over Western Zemuria, rebuilding Zephyr following the events of the rivalries.

Xeno, alongside Leonidas would rejoin their former comrade Garcia Rossi in the forces deployed by Vita Clotilde against Reverse Babel.



Trails of Cold Steel IV

Name Cost Upgrade materials Acquired
Blade Rifle (Sen III Weapon).png Desperado
Finale: "Scattered Petals, Dying Flames"
[STR+1450/RNG+2/Critical rate+2%]
A reckless blade rifle that offers its wielder incredible power, albeit with a sizable recoil.


Trails of Cold Steel IV

Name Power Break Unbalance Cost Acquire
Craft (Sen III Skill).png Storm Raid
C D 10% 30 CP Initial
Physical - Line S+ (Set) - Blind (50%)
Obstructs the enemy's vision with a tempestuous attack.
Craft (Sen III Skill).png Murderous Shot
B B Yes 40 CP Initial
Physical - Line S (Set) - K.O. (20%)
Fires through foes with a large rifle, sending them to the abyss.
Craft (Sen III Skill).png Javelin Throw
D C 15% 80 CP Initial
Physical - Area M+ (Set) - Burn/Confuse/Petrify (50%)
Detonates trap javelins in a continuous, threefold assault.
S Craft (Sen III Skill).png Genocide Rain
SSS+ D No 100+ CP Initial
Physical - Area LL+ - STR ↓ (L) (4 turns)
Snipes from high above, detonating javelins around the enemy with deadly precision.

Brave Order

Trails of Cold Steel IV

Name BP Effect
Killer Hornet
1 Critical rate +30% (4 turns)
SPD ↑ (L) (1 turn)


Trails of Cold Steel I, II, III, and IV


  • Xeno and Leonidas are always together whenever they appear on-screen. The one exception to this is when they are fought against individually in Zephyr's Spirit Shrine.



  1. Took place "10 years ago" in S.1206.[3]


  1. Evan Smith Twitter (accessed: October 22, 2019) at @evansmithvo
  2. Trails of Cold Steel III, Full Color Art Book, p.79 [3].
  3. 3.0 3.1 Trails of Cold Steel IV, Act 3: "Seekers of the Dawn", 08/28.
  4. 4.0 4.1 Trails of Cold Steel II, Finale: "Forward, Relentlessly", 12/31.
  5. Trails of Cold Steel III, Chapter 1: "Reunion", 04/23.