One of the longest things ever. The explanation is I remember reading/hearing Akihiko say he had never cried in front of someone since he was born (or an infant come on Akhiko.) and Misaki the one chapter of the manga found one of his notebooks and mentioned how Akihiko seemed lonely writing the passages. It’s clear that Akihiko and Misaki are both damaged characters and Misaki saw/read a side of Akihiko he never seen or knew about. It interested me.