Responses

From my point of view, he wants to become friendlier with their brothers as he is now in a relationship with Towa.
Towa doesn't link the fact that they just had sex and think that he is only a very polite person and wants to say hello to his brothers.
No matter how many times I've reread this manga, i can't never understand when Mikado said "I should go talk to your brother and clean up the air"
Well, I guess I dumber than Towa
╮( ̄▽ ̄)╭
Can someone explain pleaseee??