Serina shows up to school to find someone has carved the lyrics of a love song into her desk, and the culprit turns out to be the standoffish upperclassman Mizukawa. Put off at first by his frosty manner, she comes to realize he's awkward rather than cold, especially as he keeps quietly going out of his way to help her. Won over, Serina takes the lead and confesses, and the two start dating from there.