Doubt

Five men gather in the mountains to conduct a survey. Among them is Misaki, who encounters Yanagida, a man who bears a striking resemblance to his missing lover, Kousaka. However, Yanagida has no memories of the past, leaving Misaki to question if he truly is the person he once loved.

A notice of personal change suddenly reduces the team from five to four, sparking suspicion that there may be a spy among them. As doubts plague the group, Misaki must navigate his feelings and uncover the truth behind Yanagida's identity and the hidden traitor.