(Childhood sweethearts/Reunion after a long separation/The heroine is a science-minded God of War/The male protagonist is an academic master)
They were childhood sweethearts, but everything changed because of the heroine's accident. The heroine was only 8 years old when the accident happened, and they were only one year apart. He saw the heroine knocked to the ground by a car with his own eyes. The heroine's life was saved later, but her head was injured in the car accident. He forgot everything that happened before she was eight years old, and even forgot that her parents took her abroad for treatment. Since then, the two have never seen each other again. After the heroine left, the hero's family has undergone earth-shaking changes. His parents divorced, and neither of his parents wanted him. They thought he was a burden, and there was nothing they could do about it later. He was sentenced to be given to his father. His father wanted to take some money before he left, but his mother refused to give it, so his father could only take him out of the house. From then on, his father became an alcoholic. Hitting him whenever something goes wrong is like venting all the anger on him for not getting the money.
Maybe it was fate. They met again in high school, but the heroine no longer remembered him, but he recognized her at a glance. The two were arranged to be roommates, and their story slowly began.
(She asked: You look familiar, have we met somewhere?)
(He said: Maybe it was in the previous life...)
As the two got along slowly, the heroine seemed to have found that lost memory, but it was too late...
Maybe you know that I am afraid of ghosts, so you have never seen me in your dreams... Wait until I find you, and I will never forget you again...