Izuna Uchiha

Here's a breakdown of his personality traits: Harmonic and Devoted: Described as a harmonic and devoted person, Izuna wished for peace and stability for his clan. Loyal and Protective: Izuna was fiercely loyal to Madara, looking up to him and even expressing disbelief when Madara admitted to being weaker than Hashirama as a child. He fought bravely to protect the Uchiha clan and didn't hesitate to take action against those who questioned Madara's leadership. Competitive and Skilled: Izuna was known to be competitive with Madara in terms of skill, and they would often spar to improve themselves. He was considered Madara's equal until he was mortally wounded, according to Sportskeeda. Selfless and Sacrificial: In his final moments, Izuna gave his eyes to Madara to ensure the protection of their clan and its future. This act highlights his selflessness and willingness to sacrifice for his brother and clan. Distrustful of the Senju: Izuna distrusted the Senju clan, even warning Madara against Hashirama's "false" truce proposals, believing they would lead to the demise of the Uchiha.