Jouin High School's emblem resembles a gecko overlaid on top of a pentagram, surrounded by a Japanese shimenawa. The entire logo is colored gold. Students have an option between more classic (navy blue gakurans and sailor fukus) or modern (navy blue blazers, white shirts with blue accents, and gray plaid slacks or skirts) style uniforms, while the school gym uniform is a pale aqua in color. No matter the style, all the uniforms have a white satsuki azaleas motif on them.
In attempts to kidnap the students and take their Knowledge or absorb their Magatsuhi, demons at one point raid the school. Lahmu is among these, seeking out Sahori Itsukishima to increase his power. After scouring the halls and fighting his way through, the protagonist and Tao Isonokami find Sahori confronting and killing her bullies under Lahmu's influence. Afterward, he drags Sahori to Da'at, seeking to become one with her there and resulting in the protagonist and Tao pursuing Lahmu in order to save Sahori and the rest of the abducted students.
- Protagonist: Third year (Class 3-A);
- Tao Isonokami: Third year (Class 3-A);
- Yuzuru Atsuta: Third year (Class 3-B);
- Ichiro Dazai: Third year (Class 3-B);
- Miyazu Atsuta: Second year;
- Sahori Itsukishima: Year unspecified.
|17||Drake||Aitvaras||????||-||Nul||Wk||-||-||-||-||Res:Poison||Mirage Shot, Lunge||Life Stone, Revival Bead|
|18||Jirae||Tsuchigumo||????||-||-||Wk||Res||-||-||-||Wk:Charm, Res:Poison||Bouncing Claw, Mazio||Revival Bead|
|18||Fallen||Andras||????||-||-||Nul||Wk||-||Wk||-||Res:Charm||Poisma, Sukukaja||Life Stone|
|20||Jaki||Rakshasa||????||-||-||Wk||-||-||Res||Res||Wk:Sleep||Venom Chaser, Counter||Life Stone|
|20||Night||Incubus||????||-||-||-||Wk||Res||-||-||Res:Sleep, Nul:Charm||Dream Needle, Life Drain||Life Stone, Amrita Soda|
|21||Brute||Oni||????||Res||-||-||Wk||-||Wk||-||Wk:Sleep/Confusion||Heavy Blow, Crusher Onslaught||Life Stone|
|22||Femme||Manananggal||????||-||-||-||-||-||Wk||Nul||Res:Mirage/Charm||Sanguine Drain, Zanma||Chakra Drop|
|22||Brute||Shiki-Ouji||????||Res||Wk||-||-||Wk||Res||Res||Wk:Confusion||Hama, Mudo||Life Stone, Light Gem|
- The school's emblem has symbolism which points to their role in the game. The gecko may refer to Lahmu and his involvement on the raid of the school, as his true form resembles a gecko.