Ai

Ignis (イグニス, Igunisu), also known as the Mysterious Lifeform (謎の生命体, Nazo no Seimeitai) or the Mysterious A.I., is a character appearing in the Yu-Gi-Oh! VRAINS anime. It is a mysterious AI program sought after by both SOL Technology and the Knights of Hanoi.

Personality
Ignis is a self-centered AI who gets carried away easily and likes to joke around. Right from the start, he can be seen as mischievous and arrogant. According to his own words, he is very disliked by his own people.

Abilities
As an AI belonging to the Cyberse, Ignis has some degree of control over it. He is the only one who knows it's location and can unlock data from it to start a Data Storm. After being trapped in Yusaku's Duel Disk, he can also act as a Duel AI.

History
An AI program created by SOL Technology, Ignis was used alongside five other AI programs. Five years prior to the start of the series,Knights of Hanoi launched an attack against the Cyberse and captured the AIs protecting it, except for Ignis who wasn't present. Ignis arrived, noting that it was a good time to be hated by his own kind. He stole vital information from the Cyberse and hid it within himself, disconnecting it from the rest of the network which forced Hanoi to stop the attack. Despite being crushed by a "Cracking Dragon", his eye survived. Ever since, he had been running from both the Knights and SOL Technology.

Yu-Gi-Oh! VRAINS
While being pursued by both factions, Ignis fell into a trap created by Playmaker, who saved him by absorbing him into his Duel Disk, turning him into a Dueling AI, thus necessitating the defeat of Playmaker in order to recover Ignis. Ignis doubted that Playmaker's Deck was strong enough to defeat the Knights' "Cracking Dragon" before stirring up a virtual wind called "Data Storm" that initiated a Speed Duel.

Before the Duel began, Ignis explained Playmaker how Speed Duels worked but didn't mention Skills. Through out the Duel Ignis repeatedly tried to offer support for Playmaker, only for Playmaker to keep telling him to shut up and remind that he was holding Ignis hostage. When they sucked into a tornado within the Data Storm, Playmaker figured out that Ignis not mentioning skills and bringing him to the tornado was part of his calculations. Ignis confirmed this, and activated Playmaker's skill "Storm Access", which allowed them to obtain "Decode Talker" so Playmaker could defeat the Knight.

Yusaku Fujiki / "Playmaker"
Being trapped in Yusaku's Duel Disk, Ignis somewhat reluctantly acts as Playmaker's Duel AI for the sake of staying safe from Hanoi and SOL Technology. Ignis talks to Playmaker politely and frequently offers support, but Playmaker treats Ignis as a hostage and is somewhat rude towards him.