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