The 8th Principal Observation Engine's Multidimensional Phenomenon Space, Oct-Radium (多次元事象空間《オクトラディウム》), is a location accessed in Trails through Daybreak II.
Background[]
The Oct-Radium manifests as a place for the Oct-Geneses to observe humanity's sins. Should Van Arkride fail to defeat the Grendel Zolga, all the unwanted observations caused by corrosions over the last three days will come to pass.
Trails through Daybreak II[]
Background[]
Van Arkride, the Arkride Solutions Office, and their associates enter the Oct-Radium after Nina Fenly opens the portal to it. As Mare can no longer manifest, Lapis Rosenberg acts as Van's holo core. Van seeks to confront the Grendel Zolga, having been invited by him. Along the way, they face off against Ellroy Harwood, Ixs, and Jorda, who entered by means of Lucrezia Isselee's Dusk Glaive. After defeating them, Ellroy states he has been allowed to rejoin Ouroboros and that he deems Ixs and Jorda worthy enough to be named jointly as Enforcer No. XX. They then leave.
Van and the party confront the Grendel Zolga as the hidden man at the Eighth Principle - Upstream Observation Domain (第八原理・遡行観測領域). The glowing lights of the Oct-Geneses surround the figure. Although Van has a strong suspicion as to whom it may be, the entity states it must be observed before it is revealed. Van states his suspicions before revealing the figure as a copy of Dingo Brad. The party face off against Zolga and eventually overcome it after a series of time leaps manifest a series of enemies they have fought before, including Zolga at the military base, Ghoul Aida & the Tyrant, and Demon Gerard Dantès, and Melchior. R.A. communicates with the party and helps a fading Dingo say his goodbyes to Marielle Aymé, who is transported there.
Van and the party are returned to reality after events have concluded here.
Enemies[]
- Ark Cubill
- Beholder Demon
- Weiss Clown
- Rare Doble
- Menacing Rubbletroll
- Genna Cubelion
- Demi-Grendel
- Demi-Grendel - Beleth
- Demi-Grendel - Godom
- Harwood the Oathbreaker
- Ixs the Glinting Bullet
- Jorda the Shadow Eater
- Grendel Zolga SiN
- Grendel Zolga
- Demi-Grendel - Beleth
- Demi-Grendel - Godom
Treasure Chests[]
| Key | Contents |
|---|---|
| 1 |        All Sepith ×400
|
| 2 |  Dawnstar Verse
|
| 3 |  Crimson Tear
|
| 4 |  Tear All Balm
|
| 5 |  Fear II
|
| 6 | Oratorio Blue
|
| 7 | Zeram Powder
|
| 8 | Gran Topaz
|
| 9 | EP Charge IV
|
| 10 | All Sepith ×400
|
| 11 |  Seal II
|
| 12 | Hope Émeraude
|
| 13 | Zeram Capsule
|
| 14 |  Indigo Ring
|
Quests[]
Gallery[]
