In episode 1 Koutaro became the manager and the owner of Sakura Market grocery store after his father died. The store is a small independent, but their rival is a large supermarket corporation, Kaneyu, putting the small Sakura Market in jeopardy, and the takeover attempt is being master-minded by Koutaro's brother, Taiyo. Koutaro fights hard to protect the market, his stepsister Nagisa and his stepmother.