Monstrous Blood

Monstrous Blood is a Japanese Shonen manga that has been published by Shonen Jump since May 17th, 2006.

Synopsis
Set in a world where monsters and humans co-exist, Kai, the hyperactive and slightly cocky son of the Monster King, heads on a quest to become strong enough to beat his father, making several friends and enemies on the quest.

Main

 * Kai - the hyperactive yet both cocky and determined son of the Monster King who after being only seen as a weak link by his father, heads on a quest to become strong enough to beat him, slowly gaining more and more strength to prove himself to his father, being rather connected to fire itself, using it for most of his attacks.

Supporting

 * Amon - the cold and ruthless king of the monsters and Kai's father who only sees worth in those who are strong, having neglected his son and is primarily focused on ruling the monsters, however it is revealed he somewhat cares for his son.

Anime
On June 16th, 2008, an anime adaption was announced as an ongoing as it premiered a year later on August 23rd, 2009.