Review Detail of formuser in Birth of the Demonic Sword

It was a typical novel with the promise of something greater. Rage against the heavens and all that. This novel had the idea of cultivating going against the nobles or something which is okay. It all changes when the MC makes this weird hybrid monster body thing . Pretty clear warning signs against it, but the MC does it anyways, and he turns into a cannibal pretty much. I feel like there is a line between evil and cannibal somewhere and the MC just skips right over it without a moral thought at all