I'm an ordinary 21st-century person who likes to lie flat and play games. Because of the deep longing in my heart, I was bound to a System called Eleven and transmigrated into the worlds of books I've read to mend regrets. By following the plots, I earn points, and once I have enough, I can go wherever I want. The System uses energy accumulated across the Three Thousand Worlds to improve itself, so it's a mutually beneficial arrangement.
This book has just two worlds, plus one vacation world, so it is and isn't a fanfic. The protagonist's fixation is on one person. Please don't say who, even if you guess. Thank you!
The first world is from a book I read many years ago, and all the names will be changed. The second is a vacation in The Grave Robbers' Chronicles world. The third is the Moe Academy world, and it's the most detailed one. The main focus is on mending regrets.
