Character: ermes costello
Ermes Costello (エルメェス・コステロ Erumēsu Kosutero), is a side character and ally featured in Stone Ocean.
Ermes is a woman voluntarily imprisoned in Green Dolphin Street Jail in order to seek revenge for her sister Gloria Costello's killer, and soon allies herself with Jolyne_Cujoh in the hostile environment that the jail is. Thanks to a certain pendant, Ermes acquires her own Stand, Kiss.