Gowther

Gowther is the Goat Sin of Lust in The Seven Deadly Sins, marked with a goat on his right breast: an androgynous, bespectacled, pink-haired bookworm who once wore a huge suit of armor Merlin made to steady his unstable mind. Stoic, socially awkward and curious, he alters people's memories; when found he was living as Pelio's servant under the name Armand. His ability, Invasion, lets him enter and manipulate minds, and his Sacred Treasure is the twin light bows Herritt. He is in fact a doll made by a demon sorcerer of the same name and modeled on the sorcerer's lover Glariza. Centuries later Princess Nadja found him in Liones Castle; when she died beside him and his magic failed to revive her, he took the blame for a "crime of lust" and threw away his magic heart, later learning it was only a placebo and accepting his emotions.