Ultraman Rosso and Blu have received the good wishes of the people of Ayaka City to protect them! However, there is a citizen of Ayaka City who just cannot forgive these two Ultramen. That man, is Makoto Aizen. He suddenly summons both brothers to him as he thrusts something towards them. Just then, in the midst of the attack, a jet-black Ultraman Orb explodes onto the battlefield…
