Ryoma has a sister… a twin sister named Ryumei, who decides it is finally time to join her family in Japan she had to stay a few weeks because, of some unfinished business. When she gets to Japan her father decides to send her to a different school than her brother trying to get them away from each other because they have a complex between them. She decides to pay her dear old man back by dressing up as a boy in school so that she can play against her brother in tournament in school she will go by Ryuu. She also is a pretty shy thing when her brother isn’t around but that doesn’t mean she is any less confident with her tennis skills.