Chelsea is one of the tritagonists of Akame Ga Kill!. She's a former member of Oarburgh Clan who joins Night Raid in the latter half of the story. Her town was wiped out by the Empire on suspicion of harboring rebel forces.
Her Teigu, Phantasmagoria: Gaea Foundation is a cosmetic box that allows you to take on the shape of any creature she want, from people to animals.
Her corpse was been decimated by Natala (a man who's begin to terminate the Night Raid and end up had his body get smushed and bleeded to death by a barbaric Danger Beast) and Noya (an assassin who managed to give Chelsea a finshing blow and end up get her arms cut off and had her body splited and demolished into pieces with fear by Enshin & Wild Hunt) and been devoured by Hekatonkheires (a dog who ordered to kill Mine, then both get annihilated and destroyed with it's owner, Seryu, in a sob-and-twisted smile).