Prologue
Rina Echizen, just came back to her home country after spending most of her life in America, where she grew up with her brother Ryoma Echizen and Yuuki Setsuna. The Setsuna's and Echizen's are both really close families. And so Yuuki and Rina grew up to be best friends. Not only is the two friends, but their also great doubles partners for tennis. However they both specialises in singles. The trio are knows as the ruler of the courts, specially in their school St. Andrews.
