Lu Shu was not anxious about opening the door with the key as he was worried that the sound of the door opening would alert Nakagawa.
He could tell from the start that the two of them in the rental house was a couple. However, their relationship was not very good.
Nakagawa repeatedly tried to find out who was the hidden Metahuman from his girlfriend so as to offer them to his slave owner. However, the girl refused to tell him what he wanted to know.
Lu Shu was waiting. He was wondering if he should save the girl if Nakagawa hit her? He felt that he should save her. If the girl was a partner-in-crime with Nakagawa, he would not do anything but she was a girl with good moral principles who became unhappy because she met a terrible man. Even as a passer-by, he ought to offer help.
