That's a nice title.
Hmm, so in a way, his friend were actually being great wingmen, eh? Pushing him to confess, which ended up with him getting a loving girlfriend.
If he felt guilty, he should have just come clean to her and then tell her that he's serious rather than wait for her to overhear it...But hey, it all worked out well in the end, in the sweetest, most Vanilla filled way possible! And I'd have it no other way.
Pity we have to imagine Kaito-kun's *cough-cough* classmates engaged in "weeping and gnashing of teeth"; first when Kawamichi happily accepted his confession (punishment game or not), then when they eventually realize that Kaga and Shinobu had sex ... and thereby sealed the deal on their being a couple!
That aside, utu-sensei's latest offering is APPROVED!