Mibôjin ryokan: Shitagaru waka okami

Masako, a widow, runs the local hot spring inn, Aku no Yu, all by herself. Her niece, Ritsuko, has been helping out at the inn since graduating from junior college in Tokyo. Her husband, Ikuo, died in an accident and was condemned to hell for adultery with Ritsuko, and his ghost roams the earth.