Asura

"When he was fourteen years old, he was 155 centimeters tall and weighed 44 kilograms. He has a 20/10 visual acuity and has a soft spot for romance manga. He once said that he preferred breasts over butts."

- Asura demonstrates his disturbingly specific knowledge about Aslatiel Asura (birth name, Kai) is a supporting character in the FanFiction High School DxD: True Maou written by demonicjester01. He is a Demi-God and the son of the God of Destruction Shiva, as well as Aslatiel's self-proclaimed best friend and one of his rivals, at least onesidedly so. He is Number Six in the mysterious organization known as Stigma.

Appearance
Asura is an eighteen-year-old boy of slightly below average height, with large purple-pink eyes and medium-length green hair with black streaks growing out of the crown. He is small and lithe, but still has a surprisingly athletic body.

His usual attire consists of a sleeveless black shirt with the design of a skull in the chest area, gray trousers, sneakers and black arm warmers. He tends to have large headphones on his ears or hanging by his neck when not in use.

Asura is considerably attractive, but his looks would be considered more on the "cute and childish" side than on the "handsome" one.

Personality
Asura is a carefree person with a very kind and upbeat personality. He is always seen smiling and is well-liked by most people. Deep down, however, he has a deep resentment towards most Devas and specially his father and Indra, which is the reason why he chose his current name.

In spite of their completely opposite personalities, Aslatiel and Asura became close friends at some point before the beginning of the story. Asura has a near-obsessive interest in Aslatiel, knowing extremely detailed things such as his visual acuity and sexual preferences, which usually leads Aslatiel to react in shock and disgust. Their interactions have been noted to be similar to a violent "Boke and Tsukkomi" routine.

Asura has stated to like serious "workaholic" women and also has a fetish for girls dressed in sailor uniforms (Seifuku). His other interests are dominated by music, liking what he calls "good music" regardless of type or genre.

History
"Kai" was born out of the love affair between Shiva, the God of Destruction in Hindu Mythology and a human woman. They lived a surprisingly family-like life for a few years, but at a time when Shiva was absent, Indra and his associates attacked their house.

Kai managed to escape but his mother died in the process. Filled with hatred and resentment, he took on the name of "Asura" in honor to the enemies of Devas and went on to live on his own.

At some point during his travels, he met and befriended Aslatiel Bael.

Plot
During Kuoh Academy's Classroom Visit Day, Asura visits the school on Sirzechs' invitation. He reunites with Aslatiel and they have a funny, yet violent interaction. Over the course of the day, he pretends to be Aslatiel's older brother and earns himself some fans at Kuoh Academy before leaving.

He is one of the Stigma members who bring down Aslatiel after he loses control during the meeting of the Three Factions, revealing to have Shiva's trident, Trishula, in his possession.

Powers & Abilities
Immense Strength: As a Demi-God and the son of one of the strongest beings in the world, Asura is extremely powerful. His aura and combat capabilities are incomparable to Aslatiel's, who is an immensely powerful Devil on his own right, and he was able to deter the Greek Goddess Artemis from further fighting with the former. His "Number Six" ranking in Stigma is based solely on his combat power. His aura is golden in color.

Master Hand-to-Hand Combatant: Asura is greatly versed in the realm of martial arts, being able to easily overwhelm a serious Aslatiel and break both of his arms during their first meeting. During their second fight, an unarmed Asura was able to keep the upper-hand against Aslatiel wielding Terminus Est.

Magic Talent: To further contrast with Aslatiel, Asura is immensely skilled in using magic. Having mastered various types of magecraft; human, Norse and Fairy magic to name a few, he is certain to have some spells for almost any situation. His vast energy reserves allow him to recklessly shoot countless offensive spells without feeling tired.
 * Structural Analysis: Asura is a skilled user of Structural Analysis magecraft, a kind of lost magic that allows him to understand the structure and design of most material objects at first glance. This gives him the ability to create an identical copy of said object using his magical power as a substitute for raw materials. Due to his experience in this type of magic along with his immense reserves of magical power, Asura is able to faithfully reproduce even items of legend such as the shield of Ajax the Great in a degraded version he calls "Ajax Image". While the tracing of holy or demonic weapons is possible, the magical energy consumption of reproducing their special qualities and effects is impractically costly, so Asura refrains from using them.

Master Trident Wielder: Despite normally fighting with his fists and magic, Asura is extremely proficient in the use of the trident Trishula. Using it, Asura was able to bring down Aslatiel wearing his Black Wolf Armor in a single decisive blow, although the latter was restrained at the time.

Immense Speed: Asura has shown to be able to move at otherworldly speeds, easily confounding and overwhelming Aslatiel during their first battle. As of present time, he managed to reach Artemis, a Goddess with remarkable fighting prowess, before she could even detect his presence.

Flight: Asura can fly with ease despite lacking any form of wings.

Equipment
Trishula: Shiva's trident which was stolen at some point by Asura. It releases a pressure at least on par with Terminus Est and is powerful enough to easily pierce through Aslatiel's Black Armor.

Trivia

 * Asura's height is 168 cm and his weight is 56 kg.
 * Asura's birthday is on June 11th.
 * Despite being considerably smaller and younger-looking, Asura is actually older than Aslatiel.
 * Asura's blood type is O.
 * Asura's appearance is mostly based on Shuu Iura from Horimiya.
 * Asura's favorite food is lasagna, while his least favorite is Gyoza.
 * His favorite manga is Trinity Seven.
 * Asura's ideal woman is a mature, "no-nonsense" lady with a beautiful singing voice. He also likes pretty girls with a sad past.
 * Ajax Image's appearance and function are based on Rho Aias from Fate/stay night.
 * In demonicjester01's headcanon, Asura would be voiced by Megumi Ogata in Japanese and Greg Ayres in English, known for voicing Misogi Kumagawa from Medaka Box and Youhei Sunohara from Clannad respectively.
 * Asura's weak (erogenous) spot is located on his nape.
 * His theme song is "Clear Mind" by Masaaki Endoh.