The Seven Deadly Sins is a shonen anime featuring a large and dynamic group of characters. The show stands out for its character growth and interesting storylines. Cast out as traitors the group disbands and goes their separate ways. The story connects flashbacks and current happenings to weave an intricate narrative.

When she was still a child, Diane wore ragged clothing until King made her a new set. Her clothes during the earlier part of the series resemble what King made for her, having sewn it herself by using leather derived from Dusk Bison skin. She also wore a backpack previously used by Meliodas. She wears a short purple sleeveless dress with white puffballs down the front while human size or the Boar Hat uniform while serving at the bar.

She is a Giant and member of the Seven Deadly Sins. Her power is Creation. She is also the wife of King.

She is also a member of the Giant Clan. About years ago before the start of the story, Diane left her home of Megadozer and rescued King. For the next years, they spent their lives together and fell in love with one another.