Rikuson is an heir to the riku family, who have been guardians of the sovereigns seal for many generations. after his father's death at the hands of sonsaku, he was raised by koumei. with koumei, rikuson traveled extensively and gained a wealth of knowledge about the stars and life itself. inspired by this experience, he adopted the name crimson warrior.
rikuson is known for his selflessness, as he always puts the safety of his master first. however, his intense devotion to his master often leads him into conflict with his comrades. as rikuson opens up to his friends, he learns about the importance of companionship and decides to protect them alongside sonken.
rikuson is considered the chosen one. he carries a red aura that represents his destiny as the bearer of the sovereigns seal. additionally, rikuson embodies the ultimate light.