From Chibi Manga:

Please, teach me about things we can't do !

#1. Ijiwaru na oni Kyoushi...a pretentious and cruel teacher give her private lessons after school?!

#2. Geki Kawa Kyoushi…a morose girl with glasses and a handsome teacher = don't tell me it'll have some alchemy between those two?!

#3. Kiken na Hokeni …A kind and gentleman teacher is in fact not what he seems to be...!!

#4. Onna Kyoushi no Ikenai Koi…Though she's dreaming about an adult and handsome man, she'll become close to a high school boy...?!