科戸瀬 イザナ
from Sidonia no Kishi
Origin
Seed Ship Sidonia
Izana Shinatose is a Guardian pilot and quickly becomes Nagate's best friend, constantly following Nagate and teaching him about the life inside Sidonia. Izana is a new third gender that originated during the hundreds of years of human emigration into space. They can become either a male or female depending on the other party's gender, or they can have asexual reproduction to make a clone of themselves.
Sidonia no Kishi
It's been a thousand years since the Gauna, a strange alien race with no known method of communication, destroyed the solar system. A portion of humanity managed to escape using enormous "seed ships" like the Sidonia, which have allowed them to maintain the population while drifting through space. Nagate Tanikaze is a young man who has been raised deep in the bowels of the ship. When he goes into training to pilot the huge robotic weapons known as Gardes, Nagate is entrusted with piloting the legendary unit known as Tsugumori. Nagate and his fellow pilots put their lives on the line against the Gauna, in the ultimate battle for the survival of humanity!
