Tsubaki is an undercover investigator who infiltrated the Soga gang to destroy the headquarters, the Shintou Group, as a whole. His plans came to a halt when the successor of the Soga gang, Kajiro, saw right...

Kagidou-san became his personal love-slave, but how did this happen and more importantly, what will happen to her in the future?

Set in the same setting, this story follows a student who catches Kagitou and Nanase (main characters from the prequel) on the school roof and two girls who end up having a somewhat similar relationship with...