Sayuki is a high school student as well as Kanon & Kousuke's classmate. She is friends with Kanon and Nemuko.
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.
