Red is a 16 year old Galactic Alliance Lieutenant who found himself stranded on the remote water planet after waking up from hibernation. He operates a mech suit called Chamber.
Red is created by Gen Urobuchi and designed by Hanaharu Naruko for Suisei no Galgantia.
As noted by Saaya and Melty, Ledo is a handsome man who has gray hair, pale white skin, and vibrant, purple eyes. His military attire consists of a black space suit that has Chamber's communicator on the front of his collar. When Ledo is stripped by Saaya and Melty, Ledo has a toned muscular yet slender body.
Due to his conditioning as soldier, Ledo is a rigid man who obeys orders and does not express much emotions. When Bevel asks Ledo what he will do if the military has served its purpose, Ledo does not have an answer. This reveals that Ledo and the soldiers like him do not have much free will of their own.