Miyawaki Sakura plays the role of a normal highschooler. After her mother died prematurely, she has been living together with her father Ouroboros Youhei, who runs a tofu restaurant and a prowrestling dojo. Youhei was once a prowrestler who reached the title of champion, after he retired he had been managing the Kinshicho dojo along with his tofu restaurant. One day, Miyawaki was at her high school talking with her friend Mukaichi