Mira's goal is to become the strongest being in the universe, and to achieve his goal, he integrates the DNA of various masters into himself; he and the Time Breakers seek Goku's DNA for this purpose. He is a clone  known to be primarily an Earthling from the future who is also apart of the Demon Realm race with Android parts, but he is also confirmed to be part Saiyan as well. Mira also seems to possess Frieza's DNA (as he has some of his facial features, and his ability to survive almost any injury), and later it is implied that he intends to integrate Nail's Namekian DNA into himself Mira remains calm, silent and is a quite observer for the most of time, rarely speaking and keeping a serious expression on his face. In Dragon Ball Xenoverse, Mira speaks more but still leaving Towa to be the one who does so with frequency. He acts as a body-guard for her. He is shown to be confident over his power and gets disappointed whenever he faces an opponent weaker than him. When defeated, Mira will always say he needs more power to get stronger to achieve his ultimate goal of becoming the strongest fighter.