Kei Asuma

Kei Asuma (明日真 景, Asuma Kei) is a tactician who works for the organization Amnesia. His Codename is "Chaos"

Appearance
Kei is a young man with short unkempt white hair, blue eyes and wears red-rimmed glasses. His attire consists of a dark grey turtleneck shirt, an unzipped greyish-blue jacket, light grey slacks with rolled up leggings, navy blue socks and greyish-blue and white sneakers. He carries with him a brown book with a bronze clasp called "Chaos Code".

Personality
Kei seems to have a cool, calm and calculating attitude under normal circumstances. Being a general tactician, he tends to overanalyze even the simplest of situations and doesn't view himself as a strong warrior, and as such, hopes he doesn't run any enemies that'll pose a threat to him in battle. Despite this, he shown to be quite fearless, noted by Carmine and shown by Chaos when he confronted Burai Yamamoto.

He tends to worry about Gordeau and his rather headstrong outlook to the point that Gordeau tends to tease him about it. Chaos also tends to be very superstitious, holds himself in extremely high regard and talks down to others, acting out on his own agenda without regard from anyone else.

Abilities
Kei uses a book called The Codex of Disorder, Chaos Code (混沌の法典 [ケイアス・コード], Konton no Houten, lit. Code of Chaos) to command a lizard-shaped Void Beast, Azhi Dahaka (アジ・ダハーカ, Aji Dahaaka). His ability is the EXS of Illusion (肖影のEXS, Shou'ei no EXS, lit. EXE of Semblance Shadow) called Umbral (アンブラル, Anburaru).

He also has some form of acrobatic combat prowess to compensate for times his powers are not available and for close-quarters combat, as well as a bit of photokinesis to augment his physical blows (he often focused on brute force before changing up his style to what it is now).