Asura Ōtsutsuki

The Senju clan ancestor was one of two brothers born with the abilities of the Sage of the Six Paths. The younger of the two, he was born with the Sage's "body": the willpower and physical energy. He believed that love was the key to peace. When the Sage was on his deathbed, he selected the younger brother to carry on his dreams of peace for the ninja world. The older brother, believing he should have been chosen, fought his brother to try and claim what he felt he deserved. His descendants, the Senju clan, would continue this fight with the younger brother's descendants, the Uchiha clan.