Your Real Girlfriend Can Only Be Me

In the last life, when he and she were still young, they made an appointment to be lovers when they grow up. However, in a sudden car accident, she left, leaving him to watch over her promise to keep the date in the next life. In this life, she was reborn. Although 18 years had passed, they still met in the vast sea of ​​people. Her body had the mark he left on her when they parted. He became a teacher in the university, and she became his student, so the second encounter between them began...