Moneylessness prevents 16‑year‑old Yo Sato from enjoying the spring of life – in the school dormitory they are fed only breakfast, and for everything else he has just a thousand yen per day, plus he has to buy manga! So the boy ran through the local department store, then woke up with nothing remembered. Piecing together the chain of events, Sato realized that he had accidentally wandered into a sacred place where every night before closing the shop sticks half‑price tags onto ready‑made bento lunches. After that, fighters sprout from the ground and a royal battle begins, in which students and schoolchildren fiercely compete for the coveted prize. One could say that a "fight club" has formed in the store, with its own folklore and traditions. Sato learned all this not immediately but through several visits to the relevant department, which invariably ended in the same way. The newcomer"s persistence did not go unnoticed: he gained a loyal fan, the attractive Hana Osirou. Then for a year the senior "Ice Witch" Sen Yarydzui – legendary bento fighter and founder of the "Club of Cheap Lunch Lovers" – took over the boys. By joining the club, Sato began to master the hard science of survival, for since time immemorial the best food and women have gone to the strongest, and civilization has not changed that!