I have no idea what's going on, but I assume it's probably best that I don't.
Too late for that. Translation is courtesy of 4chan by the way.
Updated
Oops, Reimu's being put through the wringer.Hi, Rei...I'm sorry.There she is.Sendai?Marisa... gotta go kill the time somewhere.Oh?Weird, she should have free time now...If the butt goes next, it'll take one or two hours.Hey Reimu, I came to play with you!