Isamichi is a man who will do anything to achieve his goal, even if he has to cheat to do so. However, what he has done is not without the feeling of guilt as deep inside his heart. He is a kind person as he explained that he actually feels regret on sabotaging the competition for Iroha. He is also a somewhat dense individual, as villains can use his rivalry with Shinobi to trick him into working for them. Isamichi initially saw Shinobi as a hindrance of his love to Iroha.