Masakage Shirota is the proud owner of the gourmet restaurant, Supreme S., which is known for its "Victory Dish". He usually behaves politely but becomes very outraged when his cookings are criticized. The "Victory Dish" is later revealed to be made with drugs and steroids for enhancing the taste, though Yako states while it tastes good, it doesn't feel fulfilling.
spoilerWhen Shirota injects the gravy from the "Victory Dish" into his bloodstream, the drugs effects start taking place and he enters his "Breakdown Mode". In this form Shirota's torso and arms become extremely muscular and veins pop up on his face. His strength exceeds a normal person's in this form and he could easily kill another person just by hitting him with a rolling pin.