System Only Gives Me Useless Gifts (Old) SOGMUG

-Completed-
Posting on RoRoad and ScHub a rewrite, I can't post link, so google it. Everything on WN will be kept as the original to track my own personal progress. There aren't any major changes so far, but there are more details.

Summary: Li Yun grew up with a system that gave him useless gifts. He wanted a reward that could prove the existence of the system, but ended up with abstract gifts like culture. Without physical proof, he was stuck wondering whether his mind was truly sane, all the while dealing with the reality of life.
How will the "useless" system help Li Yun navigate medical school, hospital politics, criminal cases, treasure hunting, farming and cooking?

Copyrights of the novel and cover are owned by Chocomug. Novel is free to read and download for personal use, such as offline reading, only.