Mayonaka wa Dame yo

Mashiro and Natsume have been close since childhood. Mashiro feels self-conscious about being taller and three years older than Natsume, and has harbored feelings for him for a long time, though she struggles to express them. One day, a man who looks exactly like an older version of Natsume appears. This man, resembling Natsume, suddenly confesses that he has loved Mashiro for a while. The situation raises the question of his true identity.