Heiden was born on the night of May 23rd to Natsu Akuma (the head of the Akuma Clan) and Wendy Matsuyama (the Head of the Matsuyama Clan). He was named after the Wendy's Grandfather Heiden Matsuyama.
Heiden is someone who is not good with words, as said by Naruto , and can be quite direct. This is due to him not having many friends and closing others off because of his love for books. As such, he can come off as a rude person to others, such as Sasuke and Sakura . Sometimes, he actually seems to enjoy angering and teasing people as well. Also, from time to time, Heiden can be quite overconfident thinking he can do things others can not.
He is almost always a calm and collected character, rarely showing any signs of distress. However, Heiden is actually a kind person who is just misunderstood. Heiden is also a very emotional person and lets his emotions control him from time to time. Heiden is a person with incredibly strong resolve who will do anything and everything in his power to accomplish something that is important to him without any hesitation.
Heiden has black hair and black eyes. He has his father's facial features, and also has his mother's light peach complexion rather than his father's light tan. In Part II, Heiden has messy, jet-black hair (dark blue in the anime) that sweeps down in his pale skin and intense black eyes. Heiden wears a uniform, which consists of a white shirt, a loose necktie, a black jacket, and black pants.
Heiden was noted by The Third Hokage as the most powerful member of the Akuma clan, with his combat skills far outclassing the entire class. In the anime, he could surround himself in a wall of white smoke, which was powerful enough to repel several enemies away from him.
Sōjutsu (剣術, Literally meaning: Spear Technique) pertains to techniques that entail the use of spears, whether the users be shinobi, or samurai. Sōjutsu can be used in combination with taijutsu, ninjutsu, fūinjutsu, chakra flow and even genjutsu in order to achieve more devastating techniques. It is regarded as a branch of bukijutsu.
The entire military might of the lone samurai nation of the Land of Iron have all been depicted as practitioners of sōjutsu. Some shinobi villages seem to promote the use of sōjutsu as well, such as Konohagakure who has the Akuma Clan a clan of spear demon.
Heiden first awakened his Tatsugan on the night of the Uchiha Clan Downfall, though he isn't able to do so again until several years later, at the start of Part I. With the Tatsugan, Heiden can see the flow of chakra, accurately reproduce any movement he sees (his own physical skill permitting), track fast-moving objects, and, by the end of Part I, predict opponents' movement to a degree. He can also use Genjutsu: Tatsugan for broad purposes such as distraction, interrogation, knocking targets out,or placing them under his control. He can use his Tatsugan to relay information to others. He can use his Tatsugan to control all basic nature elements.
Heiden Akuma uses his clan taijutsu style the Black Tiger Fist.
Black Tiger Fist ( ブラックトラの拳 Burakku tora no ken) The Black Tiger style is characterised by its extensive footwork, acrobatic kicks, low, wide stances, and unique fist position (where the thumb is curled in the same manner as the other fingers, rather than wrapped around them) this taijutsu style is described as the strength and ferociousness of the Iron Fist mixed in with the flexibility and grace of the Gentle Fist. According to the Shaolin grandmasters, the style is the single most external style in the Shaolin canon; the longer the stylist practices, however, the more she or he comes to rely solely on internal power.
- When Heiden mother Wendy died she turned herself into the fire and wind chakra beast Anbus and sealed herself in making Heiden something like a jinchuriki.
- When Wendy is in control of Heiden's body he temporarily get her clan the Matsuyama Clan kekkei genkai Kuukikyoomyau this only happens when Wendy is in control so Heiden can not use it or can his children use it.