As a child, Mo met his teammates during the Academy entrance ceremony and graduated at age 10. During his time at the Academy, Mo was soon considered one of the class' dead-lasts, spending most his time in activities that seemed more fit to his interests that in the activities that were coordinated by the teachers. In Mo's case his interests were almost none, because since childhood Mo showed a reluctance to be caught in the most difficult goals to achieve. Thus, Mo spent most of his time sleeping during class or hidden in the roof of the Academy mixing different types of liquids and trying to control them. However, due to his great skill with ninjutsu and the Kekkei Genkai of his clan, Mo had no trouble on graduating from the Academy. Once the Team 13 was formed the team's tutor, Chika Ta