from How to Discipline Shishunki-chan
Sakura Ooishi is a high school student and attends the same school as the rest (class 2-C). She is also the current student council treasurer and Konoka's friend.

How to Discipline Shishunki-chan
Kousuke is an athletic and good-natured 15 year old boy with an appropriately healthy interest in girls, and Kanon is a girl who is bad at talking to boys due to immersing herself too much in books but wants to try falling in love.