Undertale: Martial Arts Legends

A long time ago, there were two races living on the earth... Humans and monsters. A war broke out between them. The humans who were good at magic defeated the monsters who were good at martial arts and sealed them underground. I don't know how long it took... Mount Ibott. Legend has it that those who climbed to the top never came back. Felix, who had no magical talent and was considered a waste, could no longer bear the ostracism of the people around him, so he climbed Mount Ibot, determined to die. However, he slipped and fell into an abyss while climbing. After waking up again, Flix found that he was not dead, but had come to the underground world where monsters who had been sealed lived. At the same time, Flix also discovered that his magical talent seemed to be related to time. A shocking conspiracy is involved. In countless reincarnations, can he save the world from fire and water? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.