n the world to which QQ and Kongwai Tao belong, the adventure of Ruca Milda and his companions is well-known as a legend. It is believed, however, that the world to which Ruca belongs actually exists. Many have attempted to travel to this world, but no one has ever returned. QQ and Kongwai later become the first to return from this world alive. The two enter from what is known as the Triverse Gate and are capable of speaking in a Triverse language that is foreign to the other protagonists.