Formerly of Top Predator and the Ujou Liberation Front, she defected to join the KareKoreya crew along with Sechs. Her former comrade Acht is still with the Ujou Liberation Front. Sechs calls her Sieben, while everyone else calls her Kanna. She calls Kagechiyo by his name. She calls Hisame "Hisa-chan." She calls Sechs "Sechs-kun." She calls Tsurune "Tsurune-cchi." She calls Ayato "Ayato-kun." She calls Miyuu by her name. She transfers into Hisame's class as a new student. She possesses DNA from both Leviathan and Kasha. She has been friends with Hisame since their time as experimental subjects.

Everyone calls her Lab-chan. A branch leader of the Ir-legal Guild and a Chosen Dwarf (part of a mafia disguised as a commercial guild). She is disguised as a correspondence school student. Her organization creates and spreads a brainwashing Love Type Diagnosis app to drain the life force of victims and kill them.

A half-zombie, half-vampire. Male. He harbors a deep grudge against Azami for his revenge against Top Predator. He calls Hisame "Hisa." He calls Tsurune, Miyuu, Ayato, Sechs, and Kanna by their names without honorifics.

A friend of Sechs. Male. He addresses everyone by their names without honorifics.

Formerly of Top Predator and the Ujou Liberation Front, he defected to join the KareKoreya crew. He addresses everyone by their names without honorifics. Male.

The homeroom teacher. He has been feeling gloomy since a breakup last month.

A member of Fools. The reliable leader of Fools. She addresses everyone by their names without honorifics. Female.

Uses polite language (keigo). Male. He addresses everyone by their names without honorifics. A member of Fools.

A member of Fools. She addresses everyone by their names without honorifics. Female.

An AI app created by Labka.