A spin-off based on Asaura's original Light Novel series, that focuses on Yarizui Sen's story. Sen is a first year student in Karasuda Private High-school. In this high-school, in-dorm students aren't provided any lunch or dinner supposedly to make them take care of themselves better. As a result, a group of students and random youngsters with poor allowances decided to fight with each other in various supermarkets in order to get half-priced ben-to; and the most renowned of these fighters are known as "Wolves". One night, Sen entered one of these supermarkets and unwillingly got dragged into a fight with them until she is saved by a very famous one: the "Wizard" Kaneshiro Yu. The later proposed her to enter in the world of the ben-to fighting and this where her formidable adventure begins.
Sato Yo is a high school boy, who likes SEGA's games. One day, he enters a grocery store to buy some food for dinner. When he tries to take a bento box, he loses consciousness. He comes around to find all the bento sold out. He notices there is a war game going on at grocery stores and players called "Wolves" compete for the half-priced bento. Yarizui Sen, the leader of Half-Pricer Club, forces Yo to join the club and he enters the bento war.
