The housekeeper, named Lilith, who was hired to take care of young Yuuri and his family's mansion, seems suspicious. Despite being too good to be true, she always serves delicious food, keeps the entire household clean, and makes all clothing smell pleasant with her laundry skills. Her eyes are devilishly beautiful, which only adds to Yuuri's suspicions about her. Could Lilith possibly be a witch or sorcerer? Yuuri is unsure but must live with her as he tries to solve the mystery behind her otherworldly charm.
Yui Horie