Ryoga & Ryoma's Sister

Ryoga and Ryoma has a sister who is Ryoga's twin. She grew up playing tennis since their father Nanjiroh Echizen was a former tennis pro. She and her brothers have been learning how to play tennis at a young age. Although she had been living in America for several years and came back to Japan and applied for the same school as Ryoma. Seigaku. The Seigaku team and herself get invited to go on a cruise by a so-called 'millionaire' Sakurafubuki and made them become hostages. What they didn't know was that he had Ryoma and Reyna's brother, Ryoga on the cruise as well but have been meddled with the other tennis players in a illegal gambling game.