Monstrous Blood

Monstrous Blood is a Japanese action shōnen manga series created by Kenji Makashima, being published by (as part of ) since May 17th, 2006, with an English translation being published by  since October 13th, 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 able to control fire, using it for most of his attacks.
 * Silver - a cynical and focused monster slayer who wants to prove himself as the best, reluctantly being convinced by Kai to join him due to Kai needing partners to help him train. He wields a blade and is extremely agile.
 * Cora - a rather bubbly snake-like monster girl who wants to train herself to be the best, encountering Kai and becoming a more friendly rival to him, wanting to train herself to be hopefully as strong as him, using her tail as a weapon.
 * Shard - a small flying furry monster who despite refusing to fight, is a skilled medic, having been the Monster King's medic as he decides to join Kai so he doesn't get too hurt in his quest.
 * Grog - a wise yet strong ogre who was heralded as one of the best warriors as Kai found him and convinced him to be his trainer, joining him due to believing that training through adversity is the best way to grow stronger.

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.
 * Jacques - a lobster monster who is the head chef of Amon as he is surprisingly good at cooking food, his meals being considered to be among the best food out there, although he can be insane at times.
 * Lotus - a cocky monster slayer who is Silver's childhood friend as despite her occupation killing monsters, finds them to be fun as she uses twin whips as weapons.
 * TBD
 * Kuma - a wrestling bear monster who had temporally gone mad, going on a rampage as he ends up being defeated by Kai, being convinced to calm down and continue his wrestling career.
 * Willow - a seductive tree-like humanoid monster who has been desperately trying to find a mate, initially having captured cute men to make her dates as soon she learns of Kai and grows madly in love with him, although he rejects her advances.

Antagonists

 * Lorien - a calm yet extremely bloodthirsty and sadistic angel who believes all monsters to be a blight on existence as he makes it his goal to destroy all monsters, getting banished from angel society due to his insane believes about monsters, slowly going more and more mad, becoming one of Kai's most dangerous enemies.
 * Ikari - a psychopathic monster who used to be one of Amon's trusted generals as he was exiled for his cruel treatment towards humans, now wanting to overthrow Amon with an army of loyalist monsters, being able to grow stronger the more hatred he feels.
 * TBD
 * Gold - Silver's emotionally abusive father who absolutely despises monsters and helped mold Silver into a monster hunter as he begins going way too far, hunting after monsters that have done nothing long and soon cybernetically enhancing himself as he now wants to kill both Kai and Silver, who he sees as a traitor.
 * Nikolai - a calm yet terrifying vampire who is a significantly stronger fighter during the night as he wants to create an eternal night so nobody would be able to stop him and his takeover of all monsters.
 * Callisto - a bloodthirsty spirit of vengeance and hatred who leads her two sisters on a quest to slay all humans after learning of the destruction and terror they cause to monster kind, soon clashing with Kai due to his love of humans.
 * Eyris - Callisto's childish and playful sister who really enjoys playing with her victims and often throws a fit when things don't go her way.
 * Alazora - Callisto's cynical and gloomy sister who finds humans to be weak and pathetic and believes that she is way better than them.
 * Calum - a zealous cult leader who runs Arger the Iron City as he wants to spread his religion, forcefully indoctrinating people in his religion as he has enhanced his body to stand up against monsters.
 * TBD
 * [2 more villain of the week dudes for the first arc]

Film-exclusive

 * TBD

Game-exclusive

 * TBD

Beat the Monster King era
The first major era of the manga, following Kai heading to train to one day beat his father, the Monster King. The era starts at the beginning of the series and ends on TBD.
 * 1) Growing Out Arc (1-10) - Kai, the son of the king of monsters, decides to make it his goal to defeat his father as he heads out to find people to help him train, while facing against a few grade monsters.
 * 2) [Callisto] (11-?) - TBD
 * TBD

Post-Monster King era
The second major era of the manga, following Kai and his friends after a two-year time jump after beating the Monster King as it follows Kai as the new Monster King, facing against new threats.
 * 1) TBD (?-?) - TBD

Anime adaption
On June 16th, 2009, an anime adaption produced by Toei Animation was announced as an ongoing as it premiered on on August 23rd, 2010.

An English dub is produced by and it aired on Disney XD from December 13th, 2010 until May 19th, 2014 and on Adult Swim (as part of the Toonami block) since TBD 2018. Since TBD 20??, the series is also available for streaming on Netflix.

The Disney XD run suffered a few edits/cuts to fit a TV-Y7 rating while the Toonami run and the Netflix and DVD/Blu-ray releases are rated TV-14 due to being mostly uncut/unedited.

Voice cast

 * TBD (Japanese) and Benjamin Diskin (English) as Kai
 * TBD (Japanese) and Johnny Yong Bosch (English) as Silver
 * (Japanese) and Carrie Keranen (English) as Cora
 * TBD (Japanese) and Doug Erholtz (English) as Shard
 * TBD (Japanese) and Lex Lang (English) as Grog
 * Ryō Horikawa (Japanese) and Patrick Seitz (English) as Amon
 * TBD (Japanese) and TBD (English) as Jacques
 * TBD (Japanese) and TBD (English) as Lotus
 * TBD (Japanese) and TBD (English) as Kuma
 * (Japanese) and Travis Willingham (English) as Lorien
 * (Japanese) and Dave Wittenberg (English) as Ikari
 * TBD (Japanese) and TBD (English) as Gold
 * TBD (Japanese) and Troy Baker (English) as Nikolai
 * TBD (Japanese) and TBD (English) as Callisto
 * TBD (Japanese) and TBD (English) as Eyris
 * TBD (Japanese) and TBD (English) as Alazora
 * TBD (Japanese) and TBD (English) as Calum

Movies
After the success of the anime, Toei began to commission movies based on the anime, with the first one releasing in December 17th, 2012.
 * 1) TBD (2012) - TBD

Games
Since TBD, Bandai Namco Entertainment gained the license to Monstrous Blood, releasing games based on the manga.
 * TBD