Undertale fanfic, self-made bones and characters written by newcomers, dual male protagonists, pure brotherhood
The self-made bone is called search (Xunyu) sans
Create your own character named Mu Yu
Mu Yu comes from the world of cultivating immortals. Due to a quarrel with his friends and the fact that he couldn't sleep for several months and failed to apply for retirement many times, he just packed up his things and started to run to other worlds (to travel). As a result, he was forcibly pulled here by Gaster.
The story of search sans
