"I will turn my master back into a human!" Matilda, who is looking for a job that provides food and lodging, arrives at a large mansion known as the 'Haunted Mansion.' The master, August, is a kind and beautiful woman, and Matilda is drawn to her, deciding to work as a maid. However, that night, the master Matilda encounters is someone completely different—?! A gothic girls' love story connected by the bond of 'blood'!!