Character from Neon Genesis Evangelion by Hideaki Anno / Gainax
The Eleventh Angel — a nano-scale virus entity that infiltrates NERV's computer systems and evolves faster than Ritsuko can type, turning the battle into a hacking war against God's immune system.
Ireul is unlike any other Angel — it has no physical form that can be fought with an Evangelion. It infiltrates NERV headquarters at the cellular level, spreading by rapid reproduction and demonstrating an ability to adapt and evolve to almost anything. It invades the MAGI system itself, threatening to override NERV's self-destruct protocols. Ritsuko defeats it not with weapons but with code — using the MAGI to feed it an evolution program that accelerates its lifecycle to death. It is the only Angel defeated entirely by a scientist, and it demonstrates that the threat doesn't always come from the sky.
Invisible to the naked eye — a nano-scale entity similar to a virus. Manifests as rapidly spreading corrosion and organic growth on NERV infrastructure. No visible core. Detected only through instruments and its effects on systems.
Also known as: Eleventh Angel, Ireul, Iruel, Angel of Terror