Heh. "He doesn't know anyone. I think it'd be awkward for him." Introducing the people he cared about most to each other was tempting, but sticking one person into a semi-large group didn't seem a good idea if that person wasn't infiltrating the group. ...Or something like that?

"Besides, I'd...rather spend your birthday paying you attention than babysitting my friend." Ha, Jirou would cry if he'd heard Ryusei refer to him like that. More importantly, uh. Quick, think of something to take that statement back if Tomoko didn't take it well!