Rindo seems uncaring and quiet though he's snarky and isn't afraid to make snappy remarks at people who he doesn't respect. Rindo is reserved and tries to act like nothing bothers him. He's a sadistic person when he's fighting and often underestimates the enemy. Rindo is rude to everyone except his older brother, Ran. On the inside, Rindo is just insecure because everyone likes his older brother more and he's always known as "Ran's little brother".