Yeonjun took the subway home and, as usual, just stood looking at his phone and listening to music. Nothing unusual, at the university he remained an ordinary guy, he never got a girlfriend. So thinking, he was driving home and suddenly a girl in a hood and headphones caught his eye. She was sitting and suddenly a man sat down next to this girl and started staring at her and then put his hand on her thigh. Yeonjun felt he had to help.