Ermes Costello

Ermes Costello (also spelled Hermes in some localizations) is a major character and one of the key allies in the anime JoJo's Bizarre Adventure: Stone Ocean.

She's a tough, prideful, and headstrong woman who deliberately gets herself imprisoned in Green Dolphin Street Prison to hunt down and get revenge on the man who murdered her older sister, Gloria. She quickly becomes Jolyne Cujoh's closest ally and friend inside the prison, teaming up with her to face various Stand battles and uncover the larger conspiracy.

In the anime adaptation, Ermes has a fit, athletic build with tan skin, yellow eyes, black hair styled in braids with colorful barrettes, and distinctive triangular tattoos (or scars in some depictions) on her forehead and chin. She's brash, loyal, quick to fight, and has a no-nonsense attitude, often acting before thinking things through. Her Stand, Kiss, lets her create explosive duplicates of objects by placing and removing sticker-like marks.

She's portrayed as fiercely determined and resilient, making her a standout supporting protagonist in the Stone Ocean arc.