Iinari! Saimin Kanojo ～Reizoku Sennou ･ Namahame Seikatsu!!～ The Motion Anime Part 2

The main character is a school teacher who hides a dark side. He picks out passive girls on public transport, stalks them, and dominates them, turning his victims into people who depend on him. The story is about how the girl's old relationships fall apart and she becomes totally under the teacher's control.