[ Mizuki smiles, but seems... worried at the same time, when Venti mentions he's not upset. It's not that he doesn't believe Venti, but... he still feels like he should apologize. Like he should tell Venti what was on his mind in a... less aggressive way. Far less rage. Especially now that he's had time to think about it. Through the lens of a temporarily depressed teenager, sure, but that's still better than violently angry, clingy, eldritch bitch. But this is a party. And he doesn't want to bring that up when, for one, Venti's probably not totally sober, and for two, he wants him to have fun.

He tilts his head a little away from his pokes, so he can nod at the "have some confidence in yourself". Not an order. But he could do that, anyway.

And then... the forehead kiss. And Mizuki immediately picks his head up to stare at Venti. Not the first kiss he's gotten from Venti- the cheek kiss from before still was a thing- but now, after all the fun of dancing with Venti and getting flustered over his song choice, and now... the letter... and Venti letting him know he wasn't upset... One might be able to even point out the constellations in Mizuki's eyes as they stay locked on Venti. Shiny, bright... excited. They soon close, of course, and he give Venti a little laugh and a smile that could light up a whole damn city.

He's... so happy. So happy he came. So, so, so... ]

I... I should go! I promised I would talk to Rafaela. And I need to make sure she's not giving Gummy alcohol. [ After he gave Venti the letter- ] But... I'll be around after, if you want~? [ A little squeeze to Venti's hand. ]