Nagisa Kaworu is the Fifth Child sent by SEELE to NERV as a replacement Eva pilot for Asuka, piloting Evangelion Unit-02. He is secretly Tabris, the 17th Angel presiding over free will, the strongest Apostle with immense AT Field powers including levitation, remote device control, and blocking particles. Possessing transcendent cognition, he notices hidden observers like Misato. Kaworu infiltrates Terminal Dogma to contact Adam but discovers Lilith instead. Developing compassion for humanity and admiration for Shinji Ikari, he abandons his mission, asks Shinji to kill him, and is crushed by Eva Unit-01. His humanoid form was prepared by SEELE, embodying philosophical depth on existence.