Stupid but old teacher killer J-type Yume survives school life with all units' pussies! Yume-chan, who has a lot of red marks, tries to seduce the old teacher in every way possible and aims to graduate. ``Ah~ Teacher~ I can't... cum inside my student~'' ``If I don't graduate soon, my secret might be leaked~'' ``I cum inside Yume, so I hope I get something in return.'' I'm an idiot, but SEX is a genius! ! Yume, a slut who lives a smart life by using her body, will probably be having sex with an old man somewhere today.