The Evangelion and FRANXX mechs are different. An Evangelions is piloted by a single pilot, while a FRANXX mecha is piloted by two pilots.

Shinji, Asuka, Rei, Kaworu, and Toji use Evangelions.

Zero Two, Hiro, Ichigo, and Goro use FRANXX mechs.

Zero Two and Hiro co-pilot the Strelizia FRANXX.

Goro and Ichigo co-pilots of the Delphinium FRANXX.

You will battle against the Angels and VIRM.

Zero Two likes to flirt with Hiro, she calls Hiro her "Darling."