4-koma about the daily lives of Tooru who has just entered the same high school as her best and childhood friend Run-chan, who is now a second year, and her friends Yuuko-chan (whom Tooru bullies cause they meet under bad circumtances) & Nagi-chan (who watches).

Included is a side story called Days in Junior High School in volume four which tells how Run and Tooru met and their adventures in high school.