Gowther

Personality:
Calm, stoic and very capable of appreciating emotions, despite her dialogue "it's as if she doesn't feel anything."

Appearance:
Without armor, Gowther is shown to have amber eyes and dark pink (sometimes depicted as magenta) hair that reaches down to below his head. His usual attire consists of a grey, long-sleeved striped shirt underneath a white sleeveless blouse, as well as a pair of black pants and short boots. Gowther also wears a pair of glasses with light frames and is apparently unable to see without them.

Who is it?
He is currently a member of the Seven Deadly Sins. His Sin is Lust and his Mark is the Goat.
He does not have a heart because he is distant and does not show emotions and needs to understand everything, he is very sincere and direct, he does not understand human emotions, he does what he thinks and says what he thinks.