Ballroom e Youkoso

[KrayZ33]

It's 1 month post starting at Marisa's place, shortly after he rocked up. It'd be no more than 2 months post their D-Rank comp, I'd say much closer to 1 month.

I don't know
this is the Sendai Grand Prix they mentioned when Tatara was at work and Chinatsu and Aki(?) had that cat-fight, isn't it?
He entered High school in Spring - which is basically where he met Chinatsu - and the Sendai Grand Prix is in September.

Which means they've known each other for roughly 4-5 month now and it doesn't feel like that at all (from our perspective)