Sengouji Ui

The granddaughter of the former owner of the Dolphin Blade team, she has been in contact with the sport from a very young age. She is very organised and is in charge of some administrative duties as well as the welfare of her fellow teammates. Prior to pursuing the Dolphin Blade sport professionally, she played a lot of tennis (albeit most of the time alone against the serve machine).

Because she was chased around by a dog when she was young, she remains terrified of dogs regardless of their size and will freeze in abject terror when she sights one approaching her.

Arguably the best cook amongst the five girls.