RE: Zero -Starting Life in Another World-, Chapter 2: A Week at the Mansion, Vol. 2 (Manga) - Tappei Nagatsuki

Working at Roswaal Manor as a humble servant, Subaru thought he had reached a comfortable new life with Emilia, Rem, and Ram. However, his unexpected demise puts that naive illusion to rest. Alive once more, Subaru works to uncover the cause of this latest tragedy, but learning the truth might be a fate worse than death