Status: Alive

Gender: Female

Birthday: June 6 (Gemini)

Height: 160 cm (5'3")[1]

Weight: 52 kg[1]

Blood Type: O Rh(+)[1]

Kokoro (Code:556) has such a nice and gentle personality that the boys in the team consider her as a Madonna-like existence. Even though she speaks very little, when she does, she is very considerate and thoughtful of others.

She is partnered with Futoshi (Code:214) and pilots the FranXX Genista.