Fairy King

Cu Chulainn is a mysterious figure who arrives in Hokkaido to aid a young man named Jack, who's struggling with an illness and feeling isolated. Jack develops an inexplicable connection with Cu Chulainn, remembering him as if they've met before. They embark on a journey through the moonlight shadow window, leading them to Nymphidia, a realm inspired by Shakespeare's Midsummer Night's Dream. Cu Chulainn is searching for a new Fairy King to lead the inhabitants of this fantastical world.