The Great Era of Entertainment

I personally think that the biggest highlight may be the protagonist's emotional journey.

This is a novel I read before. I recently re-read it and found that it has been discontinued for a long time. The content is probably about the protagonist going back to the past to change the world. After all, I no longer remember the content of the story. However, the heroine is eye-catching. She is not a so-called school beauty policewoman, but a girl with whom the protagonist has not interacted too much in her previous life (because this girl's family background is quite good, so the protagonist and her in the previous life have no intersection). Especially in the scene where the protagonist confesses, everyone thought that the protagonist was going to confess to the school beauty. Everyone thought that the protagonist and the school beauty were a perfect match. Even the school beauty thought that the protagonist was interested in her - until the protagonist called out the girl's name.