The name of a novel. Everyone, help me think! Thank you, dear friends!

It seemed to be a Korean novel, but it didn't seem to be. It was about the same time as that guy was so handsome. The title of the book seemed to be written in pink. Everyone, help me think! The content was about a boy tutoring a girl and both of them fell in love with each other. The man was several years older than the woman. There was a scenario where a man and a woman had a fight and the woman wanted to go out. She hoped that the man would ask her where she was going, but the man did not ask. After that, the woman went to the bar, and then a boy at the next table came to hit on her. After that, the woman ran out and squatted on the ground crying. Later, her boyfriend appeared and said that he had been following her and had seen what happened at the bar.
I can't remember anything else, but I hope everyone can help me think about it. She suddenly wanted to watch it again, but she could not remember what it was called. Thank you, everyone!

Answer 1

The name of the novel was as follows:

Battle Through the Heavens