MC1: Kiyotaka Ayanokouji, A dear friend of Ms Ayako Takamine who stays overseas and visits her whenever he visits Japan, He's a human with an IQ of 185 surpassing the great Einstein himself.
MC2: Tomoki Aida, A boy in the same class as Yukiha finally resolved to confess, but Yukiha had already lost her virginity to Kitou. He Swore to protect her when she explained all that was happening to her
FMC1: Ayako Takamine, A young and talented teacher with a strict personality yet kind, always looks out for her students especially Aida and Serizawa because She's their homeroom teacher
FMC2: Yukiha Serizawa, A kind and pure girl who succumbed to the pleasure of having sex with Kitou, becoming his sex slave.
Antag: Masami Kitou & Vice-Principal (I will call him Oga Genkei as his name wasn't mentioned anywhere), are just plain scum who needs to be purged from the face of the earth.