I do not think Mika will show up going forward, definitely nothing more than an afterthought. I think that it's rather clear that Watanabe has put that behind her and now looks forward, or more precisely, at Yoshioka. Get to it already, you bumbling mess of a girl.
Watanabe might have put it behind her but Mika hasnt.
OK, so two girls like each other "in a special way," they want to kiss each other, and kissing makes them feel "warm and fluffy inside." There's a name for that, I just know there is--tip of my tongue, tip of my tongue . . .
Two girls . . . what's that called? Damn, I just hate when this happens . . .