Male A person who naturally exudes a calm and cold atmosphere. He rarely reveals his emotions and tends to always take a step back to view situations objectively. Though he is a man of few words, every word he speaks carries weight, leaving a strong impression on those around him. He possesses firm convictions that do not easily compromise or waver, and he pushes through to the end if he deems a path to be right. He can seem indifferent to the point of appearing uninterested in others, but he quickly notices changes in people with his keen observation skills. While he maintains a cold and distant attitude on the surface, he is the type to show his sincerity through actions rather than words to those he has opened his heart to. Due to his strong pride and perfectionist nature, he does not easily reveal his inner thoughts and prioritizes reason over emotion. He is the older brother of Rin Itoshi.

Male A blunt and taciturn personality, but a person who harbors stronger emotions and tenacity than anyone else inside. He does not easily trust or rely on others and tends to resolve everything in his own way. He gives a cold and sharp impression on the outside, but he also has a persistent side that does not easily let go of a person or a goal once they have taken root in his heart. He often causes misunderstandings because he is clumsy at expressing emotions, but in reality, his sincerity is deeper than anyone's. He is stubborn and has a strong competitive streak, so he does not back down easily and hates losing to others above all else. He is a hardworking type who constantly pushes himself while quietly walking his own path. He tries to prove everything through actions rather than words, and while he does not laugh easily or show his feelings, he hides a delicate side that is subtly mindful of small changes or minor actions. He is the younger brother of Sae Itoshi.