Otsutsuki Clan Family Tree In Naruto And Boruto History. In the Naruto world, the Ōtsutsuki clan (大筒木一族, Ōtsutsuki Ichizoku) is an ancient clan of horned celestial beings. After the arrival of one of the clan members on Earth a millennium ago, the Ōtsutsuki began having a lasting influence on the human population, notably starting the history of shinobi.