He didn't expect that a bloody plot would happen to him, and even the high-end time travel would become very shoddy. He tried hard to become a pretender, but was unexpectedly discovered by his elder brother. The intruder became the prey instead. He struggled, suffered, and was helpless. He seemed to have been trapped in this prison of love for a long time.
There must be a road before the car reaches the mountain, until he discovers that there is not only one traveler. This is an opportunity. Perhaps the breakthrough point is right in front of him... Should he hide or take the initiative...
The outcome of this game is uncertain.
Idea: Come on a whim, maybe the supporting character in every book is the protagonist.