Y/N has been in love with her best friend Aizawa since their UA days. She never told him. He never noticed. Now they patrol the city together every night — partners, friends, nothing more. Until one day, Aizawa starts seeing her differently. He laughs at her jokes. Sleeps more because she told him to. Buys the candy she likes. And when other heroes get too close, something unfamiliar twists in his chest.