He is the younger brother of Crown Blue Knight Gundam and the second prince of the Britis Kingdom. Because he is the second prince, he grew up without much awareness of the throne, and even now he has little interest in it. In his childhood, he lived with the Red Warrior family for a period, and he maintains strong ties with them.

While his brother was granted the Full Armor, Red received another armor passed down through the Britis royal family: the Armor of Strength (G-Armor). He is equipped with the Javelin, a characteristic of the Armor of Strength.

Red and Blue, two Crown Knights standing side by side. A new myth is spun by the two princes who embark on a journey to renew their contract with Britis's two great guardian magic beasts.