Promises

Yuma, who was just made, is being taken cared by Kaito. Yuma does not exactly know that he is a Vocaloid and Kaito doesn't allow Yuma to find out. Kaito loves Yuma as a normal human and treats him like a human, but Yuma notices that Kaito is hiding many things from him, not just things about what he is, but things that can also tear their relationship apart... Yuma X Kaito