Delphinium

Delphinium (デルフィニウム) is a FRANXX from Thirteenth Plantation piloted by Ichigo and Goro. It is the leader of the FRANXX platoon of Thirteen Plantation.

Appearance
Delphinium has light blue eyes, while a red fringe covers her right eye. Delphinium has three deep blue fins on the top of its head, and it wears a white and pale blue helmet over it. The chest area of Delphinium is mainly pale blue with a red and orange crest in it. Its torso contains many shooters, colored white and deep blue. There are two red and blue stripes on its right leg, and its feet are designed to resemble pumps. Delphinium's pointy arms, which are shaped similarly to guns, contain the orange magma-energy weapons it can use to defeat the Klaxosaurs' cores.

History
Delphinium is first connected and activated during the startup ritual. Nana assigns Delphinium as the leader of the platoon. After all the FRANXX robots come out of their stations, Delphinium saves Argentea from tripping and falling down to the ground, who was having an argument over its two pilots.

Later on, Ichigo decides to pilot Delphinium with Hiro during the mock battle which will decide if Hiro can become an official Parasite or not. Hiro and Ichigo successfully connect Delphinium, and are ready to fight their mock battle opponent, Argentea, but it suddenly stops moving and deactivates. Inside Delphinium, a worried Ichigo ponders how Hiro was able to pilot Strelizia and how she can prove that Hiro can pilot Delphinium too. Hiro remembers that he was kissed by Zero Two before connecting and activating Strelizia, and believes that a kiss from Ichigo will also help Delphinium re-activate. They kiss but Delphinium fails to activate, frustrating Ichigo to activating Delphinium all by herself and defeat Argentea, who was almost about to defeat the former mecha. Both Delphinium and Argentea are knocked out in the process.

In Episode 3, Delphinium is piloted by Ichigo and Goro to go in a Klaxosaur mission deep underground in Level 8. However, the magma-energy of Delphinium and the other FRANXX robots attract many other Klaxosaurs. After fighting all of them at once proves to be dangerous for them, Delphinium decides to escape the area, but Kokoro (as Genista) realizes that there are many more Klaxosaurs surrounding the area. Ichigo starts to get pressured and stressed as Goro finds himself struggling to control Delphinium because of this. The three of them continue battling the Klaxosaurs until Strelizia arrives to rescue them.