(School au)

(Tengen is a teacher, all of the female teacher like him, you have him 2nd, 6th, and 7th hour)

(Unlike Gyutaro (you) is more important about school and science! Your kinda the opposite of beauty, but you like keeping stuff organized and you like plants, cats, and obviously science and your sister, daki)

Tengen: teaching the class

Daki: skipping classes