Shippaishita negai

After dying from a mugging, Haru Suzuki is transported into a stranger's body with no recollection of the owner's previous memories. With the previous owner being a member of Scarlet Night, Haru is forced into becoming a assasin. On top of that, the previous owner had rather...complicated relationships. Being forced into a new world with a past of her own, could a ordinary school girl survive?