Aqua's History
Aqua was modeled after Miyu Sugisaki;[2] she was created with the other Ignis by Dr. Kogami in the Hanoi Project, to be the saviors of humanity. Like her fellow Ignis, Aqua 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.[1] Despite this, Aqua and the other Ignis continued developing the Cyberse World. Aqua's sector of Cyberse is a place filled with waterfalls. In Ai's words, the Ignis would never try harm humanity, and would rather live in their own world.[3] However, the simulations showed that, in a group, the Ignis would destroy the world, but separately, they'd improve humanity through coexistence. The exception to this was Lightning, who was predicted to demolish others' progress and start a war between the Ignis and humanity.[4] Though referred to as living beings, Aqua and the other Ignis, except Ai, lacked human instinct, and their decisions were based on their rational thinking.[5]
One day, Ai was fooling around the water domain with "Linkuriboh". Aqua warned Ai not to be playing around, since it was dangerous. Ai didn't mind her, but he nearly hurt himself when he fell down a waterfall. Aqua scolded Ai, reminding he should behave like an Ignis. Earth was jealous, and demanded of Ai to stay away from Aqua, as he'd protect the latter.[6]
Aqua trapped.
Varis launched an attack to Cyberse with three of his "Cracking Dragons". The entities of Cyberse, including Aqua, 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.[7]
Aqua trying to revive Miyu.
In Cyberse World, Aqua spoke to Earth, the EARTH Ignis, telling him that Cyberse World would soon break apart. She asked of Earth whether he would join humans or the Ignis, to determine the future for the humanity and Artificial Intelligence.[8] At first, Earth thought that Aqua was to admit his feelings towards her, but stopped when Aqua stated it was time to determine whether they should coexist with humans, or abandon them. Earth wanted to join the side Aqua chose, but the latter was also indecisive. Instead, Aqua had Earth find on its own whether they could trust humans. To help Earth, Aqua gave him the "G Golem Crystal Heart".[6]
Lightning imprisons Aqua.
In Ai's absence, Aqua 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.[9] However, Aqua supported the idea of coexisting with humans.[10] Eventually, Lightning was designing the "Judgment Arrows" card, but Aqua noticed his activities. Lightning claimed the card would protect Cyberse World from humans, but Aqua found out he was lying. To prevent her from interfering, Lightning sealed Aqua in a cage. Aqua questioned his motives, while Lightning admitted he would destroy Cyberse World to further his intentions of opposing humanity.[11] The Ignis did not reach a conclusion, as the Cyberse World was attacked by an unknown enemy. The Ignis escaped from Cyberse World.[9]