The Bestowed Moon

What exactly did you bring from that mansion?

A female college student born into a bloodline with a horrific history — Susu Wadazumi.
Because of her lineage, she has suffered from terrible nightmares for many years.
One day, she is invited by her friends to work part-time at a hotel for a change of pace, but the hotel has an abominable connection with a certain mansion, and Soo and the others are taken in by an unexplained mystery.

A bizarre mystery depicting the curse of the bloodline that follows you everywhere.

(from mangaupdates)