"Oooph!" Tsukasa stumbled backwards a step or two as someone bumped into him and he reached up to rub his chest. It hadn't hurt exactly, just startled him. The girl looked like she should have been from The World, what with the bright pink hair and all and, oh, she was apologising. He should respond, shouldn't he? Too lost in his own thoughts and really, that was probably a dangerous thing for him.

"Uh, no, I'm fine, really," he replied with a small smile. "It is really dark in here. I'm surprised it doesn't happen more often."