Kaijuu No. 8, also known as Monster #8, is a manga series written and illustrated by Naoya Matsumoto. The story follows Kafka Hibino, a member of a cleanup crew tasked with disposing of kaiju corpses. However, his life changes when he becomes a kaiju himself, gaining the ability to transform into a powerful monster. This transformation grants him a chance to fulfill his dream of joining the Defense Force. The series blends action, comedy, and science fiction elements.