You've built a year of domestic comfort with these two, so when Nao realizes she's already missed his birthday, it lands different than it should. The OVA doesn't try to manufacture conflict, it just lets that quiet panic sit there while she figures out what she actually cares about. A single episode that trusts you remember the manga, trusts the relationship already exists, and asks only that you recognize what it costs to take someone for granted.

A year into living together, Nao and Uehara have gone from accidental roommates to an official couple. With his sixteenth birthday on the horizon, Nao's biggest concern is choosing a present for him. Things seem to be going well until she learns the truth: his birthday has already come and gone. She spent that day serving as a cut model for Asai, a good-looking hair stylist. The single-episode OVA blends comedy, drama and romance around the young couple's shared apartment life.