An accident caused Shen Yu, who was emotionally lacking, to enter time and space travel. Every time and space story he entered was about him and a young man named Ke An.
For Shen Yu, Ke An is just a dispensable existence in his life, a "phased" friendship in high school. But during the time travel, this idea will be subverted. It turns out that the relationship between the two is much deeper than he thought, and it is an existence that cannot be separated by time and space.
Cold-hearted and scheming (Ke An) x Smart and emotionally deficient (Shen Yu)
PS: This paragraph mainly describes Ke An and Shen Yu from the original world.
Purpose: Explore the impact of choices on life based on parallel universes