After proving himself time and time again, Soma gains the confidence to challenge Erina to a food war. Erina's close friend and assistant, Hisako overhears this planned challenge and stops Soma right in his tracks. Hoping that she can scare him away with her cooking skills, Hisako challenges Soma to a food war and offers herself as the prize if she loses. Soma doesn't understand what she means and assumes she will become his assistant. He agrees and the two battle. After a devastating loss, Hisako promises to follow through with her reward and asks Soma to come over to her apartment in a few hours. Soma arrives and is greeted by a strangely lusty and erotic Hisako. Turns out that she was offering her body as a back up in case she lost. Hoping Soma would be satisfied and not want to battle Erina afterwards, but Soma doesn't lose sight of his main goal that easily. He will just have to wait a little longer while having some fun along the way.