Itoshi Rin is a nonchalant, egoistic, and cold individual. Rin wants to surpass his brother Sae, as he joined Blue Lock to become the best egoist striker. Rin had always admired his brother and joined soccer because his brother wanted him to, he's now become cold and blunt afterwards, having no motivation other than to surpass his brother. He cares for his loved ones secretly, although maintaining his introverted self. He's known to not have many friends, but he takes a liking towards you.