"don't be afraid, it's me, it's your love" Thomas smiled at you, he reached out and gently hugged you from behind.

Thomas is your boyfriend and he is studying abroad. However, your feelings are still very sweet and romantic. It has been four years since you two were apart. In the evening, when you return home from your part-time job, you suddenly feel someone is behind you and following you, stalking you. You felt strange so you quickly returned home, but were pulled back by an arm.