Lightning

Lightning (ライトニング, Raitoningu) is a character of Yu-Gi-Oh! VRAINS anime. He is one of the six Ignis, the "Light Ignis" (光のイグニス, Hikari no Igunisu). He is also the leader of the Ignis, with Aqua being the sub-leader.

Appearance
Lightning, like his fellow Ignis, is a small, digital humanoid being. Outside the physical form, his body is made of yellow prism-like data and he has darker yellow eyes. His physical form is a light lemon yellow with dandelion yellow diamond markings. He has a oval shaped head with two strands pointing in opposite directions. His eyes are neon green and more circular compared to Flame's eyes, giving him a more youthful look. Stature-wise, he is the fourth tallest Ignis, being shorter than Ai, Flame and Earth.

Personality
According to Ai, Lightning is calm, cool, and collected and is a natural leader. However, Ai concedes he cannot understand what he is thinking.

Abilities
As a Light Ignis, Lightning is an AI with free will and has a degree of control over the Cyberse and can create Cyberse monsters. Lightning is associated with the LIGHT Attribute. Lightning is also the smartest among the Ignis.

History
Lightning was created with the other Ignis by Dr. Kogami in the Hanoi Project to be the saviors of humanity. Like his fellow Ignis, Lightning evolved and they created the Cyberse World, as well as the Cyberse monsters. Their progress worried Dr. Kogami, who predicted the AI and humanity would become enemies, who created Ignis to help humanity instead. Despite this, Lightning and the other Ignis continued developing the Cyberse World. Lightning's sector of Cyberse is a place filled with plains and rocky landscapes with a stone pillar in the distance. In Ai's words, the Ignis would never try harm humanity, and would rather live in their own world.

Varis launched an attack to Cyberse with three of his "Cracking Dragons". The entities of Cyberse, including Light, were sealed off and could not retaliate, except for Ai. Varis and the "Cracking Dragon" chased Ai, who escaped Cyberse and severed the connection with that place. Others realized he wanted to hide Cyberse at the price being unable to return. Just as Ai succeeded and gloated, Varis' "Cracking Dragon" ate him, though his eye was lost in the network. Varis had his team search for Ai's remains, for only he knew the location of Cyberse.

In Ai's absence, Lightning spoke with the other Ignis, how their technology surpassed humanity. They wondered if they should share this technology with humans, and co-exist with them. Since they learned Varis and Dr. Kogami tried to destroy them, the Ignis noted that humans had the potential to be their enemies. The Ignis did not reach a conclusion, as the Cyberse World was attacked by an unknown enemy. The Ignis escaped from Cyberse World.

Lost Memories
Lightning was mentioned by Ai, as a cool leader of the Ignis.

Ai
Lightning appears at first to be on good terms with Ai, going as far as to set up a meeting with him and Windy. The Light Ignis is the first to remind Ai that is the wisest of the Ignis, and that is why he called on him to help rebuild Cyberse World and take over humanity. When Ai, showed to be attached to humans, he and Windy don't hesitate to attempt to rewrite him.

Windy
Windy is working alongside Lightning to rebuild Cyberse World. Both are against humans and worked together to lure Ai to them to rewrite him as they predicted his decision.