Height: 181 cm

Kafka Hibino, also known as Monster #8, is a Defense Force member and a former worker for the Professional Kaiju Cleaning Company "Monster Sweeper Inc.". Kafka's personality is a bit childish and funny, as well as a very determined and dedicated person who loves his comrades dearly.

After a kaijuu managed to enter his body, he obtained the ability to turn himself into a humanoid kaijuu.