Kana, who is entrusted with the position of department head and is serious and strict about her work. One day, she was scheduled to inspect a factory in the countryside with her subordinate, Yoshino. It's a week-long business trip leaving her husband behind. Immediately, in order to go from her lodging to the factory, Kana is molested on the commuter train she rode for the first time. She asks Yoshino for help, but he is nowhere to be found when she needs him. After that, the molester appears almost every day as if he knew Kana and was targeting her, and the acts escalate. Unaware that they are also the factory workers who hate Kana...