The story will start with the characters from KO One, then gradually shift to original characters.
An unexpected turn of events brings the protagonist to KO One, where they acquire the Mutual Achievement System. Every time they help a protagonist, they receive a reward. The heroine, Tian Xin, is nearly invincible; I'll decide later whether to add more heroines. The System is preparation for opening up a multiverse. If you spot any typos, leave a comment and I'll fix them. This is my first time writing, so the beginning is a little rough, but it gets better later. After chapter 60, I'll start adding a new book. If you enjoy tomb-raiding and ghost-hunting novels, check out my new book, I Just Wanted to Eat a Fish, but Even Great-Grandma Showed Up.
The writing is very nice, keep it up