Elaine

Elaine (エレイン) is the sister of King of the Seven Deadly Sins. She is also the Guardian Saint of the Fountain of Youth, who was killed by Ban and now resides at the Capital of the Dead.

Appearance
Elaine has neck-length cut hair and long eyelashes. She wears a single one-piece dress which is tied together with a butterfly knot at the back.

Personality
Elaine is shown to be a kind girl who cares deeply for Ban and is willing to forgive King for abandoning her. Although, she is also slightly disappointed and unhappy about King for leaving her and their country for over 700 years.

History
700 years ago, King left the country and Elaine lived years of solitude, protecting the Fountain of Youth as the Guardian.

Possibly a long time ago, before Ban met Meliodas and the others, Elaine was killed by him whilst she was protecting the Fountain of Youth.

Trivia

 * In Arthurian legend, Elaine of Benoic is the wife of King Ban, who is the namesake for Ban, and Lancelot's mother.