This is a real teacher-student love. In real life, the hero and heroine have been silently insisting on each other for seven years, but never really pursued each other. In the end, the male protagonist gave up first and got married. In seven years, the male protagonist single-handedly brought the almost fallen female protagonist back to a normal life. The heroine once said to the hero: Thank you for making a once naughty child learn to be sincere. Once upon a time, they were really the protagonists in each other's lives. Nowadays, they are just passing by. This result is too cruel to both of them, so the perfection of the novel will be used to make up for the shortcomings of this relationship.