His parents died when he was nine years old, and he lives alone on the isolated "Mermaid Island" - the burial place of the legendary Little Mermaid. There is a poignant legend about mermaids circulating on the island, and people seem to be having a grand dream together. By chance, at the age of nine, he and his friends secretly broke into the forbidden area and accidentally broke the "Mermaid Heart" used to "resurrection" the Little Mermaid. For this, he was imprisoned. Fortunately, she has super powers that are different from ordinary people and can put the fantastic ideas in her mind into reality, so she got through it.
I thought the matter was settled, but not long after, my teacher and classmates disappeared mysteriously. In order to find them, the nine-year-old jumped into the rabbit hole with his friends, and unexpectedly discovered another world. Monsters that devour children's hearts, deer lost in the forest, flashing goldfish swimming and butterflies that live and die, a wonderful journey begins... Can the butterflies fly back to our summer?
Intention: If the truth of life is a huge lie, she must face this lie, like a moth flying into a flame or a mayfly shaking a tree, exhausting every life in pursuit of the hope in her heart.