Promoted to section chief, Tomotaka is serious and strict with his work. One day, he goes on an inspection trip to a local factory with his subordinate Yoshino, who is receiving education. The business trip will last a week, leaving his husband behind. From the accommodation to the factory, he has to take an unfamiliar train, but the commuting rush is no different from the city center. On such a train, Tomotaka becomes a victim of molestation. He seeks help from Yoshino, but at the crucial moment, he can't find him. And the molester appears every day as if targeting Tomotaka, with his actions escalating. Little did he know that even his subordinate and the factory workers were involved…
