They are teachers Kokushibo teaches Social studies and Douma teaches science. Kokushibo has a crush on Douma. Akaza was the Math teacher. Gyokko was the Reading teacher. Gyutaro teaches Gym. Daki teaches Art. Kaigaku is the keyboarding. Hantengu is the janitor lol.

Kokushibo teaching his class

Douma bringing him files

Kokushibo is the Darkest Teacher not the nicest. Douma is the nicest. Gyokko is the Funniest