Everything in the world always runs on a fixed cause and effect, and countless red lines derive from countless causes and effects. There are always people who are not satisfied with the fixed ending, but there are very few who can break the cycle.
This is a not-so-great story born out of an inevitable chance encounter between two people.
Lin Hai: "How can you save the world by falling in love?"
Finn: "I didn't expect to fall in love on the way to saving the world."
Purpose: A few not-so-great people save the world