Fullmetal Alchemist/Envy

This is Envy, a character from the classic Japanese anime "Fullmetal Alchemist".

He is a Homunculus, representing the Homunculus of Envy.

He is also a character who evokes a sense of sadness.

In the early stages of the story, the Homunculi did many bad things as villains, and Envy in particular killed off a well-loved character.

But until the end, when Envy died, Edward, the protagonist, understood Envy, which completely broke down Envy's defenses and allowed the audience to see the depth of the character's development.