Grotesque, Godzilla-like monsters called "kaijuu" have been appearing around Japan for many years. To combat these beasts, an elite military unit known as the Defense Corps risks their lives daily to protect civilians. Once a creature is killed, "sweepers"—working under the Professional Kaijuu Cleaner Corporation—are left to dispose of its remains.... more>>

Kafka Hibino is a 32-year-old member of the Professional Kaiju Cleanup Corp. Kafka was also childhood friends with Mina Ashiro who he made a vow with to join the Defense Force together and protect Japan from Kaiju. However, Kafka failed the entrance exam numerous times and quit on his dreams of being a member of the Defense Force while Mina went on to become the captain of the Defense Force’s 3rd Division.

Following a chain of unfortunate events and an interaction with an ambitious recruit named Leno Ichikawa, Kafka encounters a parasite-type kaijuu that forces its way in through his mouth—turning him into a humanoid monster. With his newfound powers, Kafka aims to give his lifelong dream a final try. <<less

A human girl falls into the demon realm and can't seem to communicate with the local demon Kuro who found her. Humans are rare in the demon realm and many would love to eat a human. However, Kuro ends up falling in love with her and names her Pochi!... more>>

Kuro decides to help Pochi get back to the human world and protects her from demons that try to eat her. She ends up being able to at least understand them but still can't speak the same language. She meets a demon prince who also shows interest in her as well and their long journey back to the human world begins. <<less

One day, the cat gods of a shrine that is falling out of use find a human baby left outside, all alone. They decide to... more>> take in the baby, who they name Tama, and raise her as their own. Now the little girl Tama, who knows very little about humans, is trying to grant the wishes of anyone who visits their little shrine, using the power of the cat gods! <<less

Front-line stories of the Defense Force not covered in the main series!