1st Angel: Adam
SPOILER! First Angel · Second ImpactAdam is identified by NERV and SEELE as the First Angel and is central to the hidden history of Second Impact. The Katsuragi Expedition's contact experiment in Antarctica reduced Adam to an embryonic state after the catastrophe.
Kaji later delivers that embryo to Gendo. The television series deliberately withholds several details about what Gendo ultimately does with it; later material makes some of those details explicit.
Kaji later delivers that embryo to Gendo. The television series deliberately withholds several details about what Gendo ultimately does with it; later material makes some of those details explicit.
Why it matters
For much of the series the characters, and the audience, are encouraged to assume that the giant beneath NERV is Adam. Episode 24 reveals that assumption is wrong.