[ It's his turn to laugh—both at the joke and the clear flush on Yujin's cheeks. He's delighted to discover this exciting new way to torment his friend. ] Hah! Absolutely no fish will be allowed in the boudoir, Mikotoba.

[ A pause, then he arches a brow and lowers his voice to a conspiratorial whisper. ] Unless of course ... you'll allow me my most secret piscine proclivities?

[ That he manages to maintain a straight face and steady eye contact is a testament to his skill as a detective. Or his commitment to a joke. Either way, this is more comfortable territory than earnest confessions of love. ]