Koichi Main Store is a fried chicken set meal restaurant in Matsuyama, located in the same building as the 0-second lemon sour yakiniku place. Chicken nanban and karaage sets come with a choice of tartar, aurora, or soy sauce, and a mini set is also available. From 11 a.m. to 5 p.m. it serves karaage-related menu items, and the amount of rice can be adjusted or refilled for free. The shiso flavor inside the chicken cutlet divides opinions.