Takahashi Tetsuo, a biology teacher at Shizaki High School, has been fascinated with "demi-humans," beings with characteristics that differ just slightly from humans, since he was in college. He wishes he could have a chance to talk with one, but since the demi-human population is fairly low, he's never even met one. But then the school gains a new math teacher, Satou Sakie... who happens to be a succubus.
If you doodle in it again, you'll regret it!
!إن رسمتِ عليه ثانية، فستندمين
Ich mach dir die Hölle heiß,
wenn du es noch mal vergisst!
¡Si lo rayas, lo lamentarás!
¡Si lo pintarrajeas, lo lamentarás!
Si tu gribouilles dedans,
je te le prête plus jamais.
Se ci trovo di nuovo degli scarabocchi
te la faccio pagare!
Se rabiscar de novo, vai ver só!
Если опять изрисуешь, мало не покажется!