Nanami-sensei's secret... That's the fact that she's the boss's daughter! She, who spends a muffy day with her students, gets involved in a territorial dispute, and puts her body on the line for the sake of the group! ! A new teacher, Miho Yui, is busy listening to students' worries and being invited by her colleague's teacher at the school where she has been assigned. Meanwhile, the students fight over Yui's teacher. A colleague's teacher and a friend from college also come out and devour Yui's body.