the NEST : HIDE and SEEK

Shinya and his little brother, Aoya, go on a camping together with Aoya's friends, Ryouki and Suga. They pitch a tent on the side of a forest, and everything seems to be fun and normal, until Usapi (Aoya's rabbit) suddenly runs into the forest. Aoya sees that, so he chases after his beloved rabbit into the forest. And that's when the mystery begins.