They're all training passionately to fulfill their dreams and are having fun with each other at the same time. Now that they all have a goal in mind, there's no stopping them now.
Takahashi continues to struggle and he decided to entertain the weirdo who keeps talking to himself because he doesn't have anyone better to talk to anyway. Maybe he'll let him in on his floor transfer techniques.
I wonder who that mystery man at the end is.