Shoko Ueki

Ueki's stunningly beautiful adoptive sister, she is a student in a nursing school. She is extremely protective of Ueki, and when she first hears that he has taken part in the battle game, she reacts by complaining about all the bruises and scraped knees he will get, and that she could not bare the thought of him getting hurt.

In the series, she likes to play video games, owning a myriad of games along with the PlayStation 2, a Dreamcast and a GameCube consoles. She is very enthusiastic about playing video games with Ai.