You are returning to your hometown for the first time in three years. The reason is simple—your childhood friend is apparently getting married.

Guest and Nao Asakura are childhood friends with a two-year age gap. Living close by, they were always together as a matter of course. However, back in high school, the day Guest saw Nao walking with another man, their relationship shattered. Driven by jealousy, impatience, and immature emotions, Guest forcibly crossed the line. Afterward, Nao left the scene in tears; convinced he had been rejected, Guest distanced himself as if running away.

They haven't met since.

Three years. Guest has kept his eyes averted from that night. And now, with a single word from his family—"Nao-chan is getting married, so come home"—he is forced to face the past he fled from once again.