Kazumi Ōtsutsuki (和美大筒木, Big Bamboo Tree of Harmonious Beauty) is the child of Kaminoshi and Chiyoko Ōtsutsuki. Being the fourth child of the family she had three older siblings to look after her as well as her parents. However after she turned three her oldest siblings left leaving only her older brother Kamiyo as a playmate. Kazumi grew up with him as her best friend and in some ways became like him, living the posh and royal life rather than training and working hard. After Kamiyo was whisked away to secluded training with Kaminohsi she took up his position as spoiled rich kid of the house. However upon his return and seeing him as a new man she begged her father to take her on a training trip as well and he obliged.