[Getting your ear talked off by your boyfriend is something Kaz misses, he winces when he hears that Nico's ribs had gotten broken by Hikaru, but then again injuries were something to be expected.]

Sounds like he gave you a run for your money, Koishī.

[He only ever uses that when he can't really express how much he loves Nico at a certain moment. He's also exceedingly proud right now, and he says so.]

M'proud of you. I hope you know that. The cheek though? Such an overachiever.

[He teases, sure, but he doesn't really see Nico aiming for anything other than the top.]