Fgo singularity featuring King Lycaon (was turned into a beast result of eating human flesh) Berserker Roland (ate human flesh as a result of becoming a beast) Barghest (manages to stay a human despite eating human flesh by refusing to look away from the horrors she has committed) and Cu Chulainn (died as a direct result of being tricked into eating his kin aka dogs)
How do you stay human when you have committed atrocities (whether by choice or by trick)? How do you stay [yourself] when you have committed atrocities? What if you just didn't? What if you let go? What if you let yourself become a monster? What even is a monster, a human, what are [you]?