I prolly read a lot of BLs to kinda sense that... Kiri and Itsuki's little bro would meet again in the future and when the lil bro's all grown up, he'd pursue Kiri (but idk)
Welp if that's not the case, I just hope Kiri finds a good partner hehe wish him happiness ;u;
I'm still on chapter 1 and I'm already noticing how much Yamato looks like Kenma and even dresses like him xD
Ikr