After missing out on the national championship in the national competition in his senior year of high school, Kanagawa No. 1 Shinichi Maki chose to retire. With nothing to do, he accidentally met Hoshikawa, a tall Lingnan girl with outstanding basketball skills, because he was willing to help others and support his friends in a street basketball game. After accidentally injuring Xinghe on the field, Mu Shenyi, out of guilt, helped Xinghe deal with the gangsters who came to cause trouble on his way home, but unexpectedly met Tetsuo, the boss of Kanagawa. Who is Xinghe and what kind of past does he have in his hometown of Osaka? Mu Shenyi was invited to Xinghe's home with many questions...