Bleh. The boy needs limits. He's too strong for the beginning. He annoys me. Probably wouldn't be as much of a problem if the people he was being a delinquent against were more deserving, but the lady blue, pink, Black Rabbit seems like nice enough people that I cannot approve of him picking on her.
Besides, still too strong. Hax!
One kid can do mind control, one kid can talk to animals, and one kid can pretty much walk through anything and beat every challenge because he's freaking superman. He's obviously going to dominate the physical challenges. Anything that can be won with strength, speed, reflexes, and/or memory, including with unexpected applications like that card game. I'm afraid the girls are going to seem unnecessary with him around, and that would irritate me greatly, because I like them far better.
But enough about him. I'm curious... the place that You-chan (adding the honorific to her name to avoid confusion) came from looked somewhat otherworldly to me. I wonder if she's actually from Earth?