Tao Wu

Tao is Jian Wu and Nuo Wu's son and  Anya  and  Izia 's big brother. His parents are A.R.M.Y's commanding officers. He became a member of the  Delivery Service Gang  under  Bella 's recommendations.

Because of his parents' profession, Tao has knowledge in science, martial art, philosophy and any skills required to inherit his parents' job. From his youngest age, he was trained to become a high ranked A.R.M.Y soldier, on the contrary to his sisters who were only used as source material.