My Store Battlefront

In order to save his sister, Kendo Champion Hasegawa Kenta is offered the lucrative job as manager of the Battlefront Mall. However, he soon finds out that this mall isn't ordinary by any means. It turns out this mall has a built in fighting arena, capable of mimicking an unlimited amount of terrains, where competitors fight to the death using any means necessary in exchange for a large cash prize. As manager of the store, Kenta's job is none other than to fight as one of the store's champions. With the help of his trusty cashiers, will Kenta be able to survive his new job?