I just gave it a quick read, here's a small summary:
Two sisters of a noble family, whole family was killed except youngest sister. She summoned a demon to ressurect her older sister and gave her body as vessel. Older sister promised the demon 100 souls instead of exchanging her younger sister's soul for the contract, as she wants to hunt down the robbers, which are apparently more than 100 people. Younger sister doesn't remember the contract or her sister coming back.
Dark themed and kind of slow burning I would say. Kind of a Jekyll and Hyde situation as the younger sis is a depressed angel and the older sis an obsessive demon
Thank you ヾ(❀╹◡╹)ﾉ~
Can someone give me a summary please, it looks interesting, but don't want to go into it being blind(￣∇￣")