[ The unfortunate combination of Ren cooking for the first time plus cake is far from Aoba's mind, especially not when the chance for a little teasing lands in his lap like this. Sure, it's something you tell to little kids, and Ren is definitely not a kid, but -

Aoba nods, watching him blow out the candles. ] That's right. You can never breathe a word of it to anybody. If you go the whole year without telling anyone, then it'll be true.

[ He puts the cake down, dutifully starting the process of removing the candles and cutting a piece for both of them. It's too much for two people, but he supposes he can leave some for their housemates, if they ever show their faces. ]

So don't tell anyone, not even me.