Buster Keel

Buster Keel (バスターキール!) is a Japanese manga series by Sakamoto Kenshirou. It has been serialized in Shōnen Rival, October 2008 and has been published by Kodansha in 8 tankōbon volumes.

Keel is looking desperately for Siva, to retrieve something precious that he took away from him. On his search he joins a beginner monster fighter girl, Ravi, along with her flying pig monster, Mippy, and goes for an adventure to find Siva.