Julia has heard stories of the Hypnotic Demons who live in the forest her entire life. She has heard of them and their Lullaby, which has a powerful influence over anyone who hears it. Julia was 12 at the time she lost her little sister, who was 8. Her sister went into the forest and never came back. Now, 16-years old, Julia plans on rescuing her little sister from the Hypnotic Demons. Julia ventures into the forest, accompanied by her friends Isuzaki and Komji, who have lost family members to the demons as well. Will Julia and her friends rescue their family, or be hypnotized by the Lullaby as well, never to return?