The Law of Ueki

The Law of the Awakening Organ (1x14)

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Ueki tells the rest of Robert's Ten (except Robert himself) that he defeated Aleggio. As a result, the Ten's Don decides to fight Ueki.Using his power to change his finger ring into a rocket, Don soundly defeats Ueki.In order to get stronger, Tenka has Ueki train in the Awakening Organ so that Ueki can raise his Heavenly-Being rank.