Shidou Yuuichi

The main character of this work.
His parents died when he was young, and he was raised by his grandparents.
His father was an engineer at a video game manufacturer, and he is trying to follow in his father's footsteps.
Compared to his classmates, he is a bit childish, and is quick to say or do what he thinks.
He is also prone to emotional outbursts.
However, he has a strong sense of duty and humanity, and his strong desire to take care of his fellow students attracts many friends around him.
He is passionate about doll battles, so much so that he accidentally destroyed his favorite doll, "Yukiko," by modifying it. He is also quite skilled, but his fighting style is quite aggressive.
He puts priority on what he wants to do at the moment rather than winning solidly, which often leads to him being easily cornered and rushing out to win.