Zero: Leaving Home to Walk the Path of the Strong

Protagonist: Sairo After defeating Belial and saving the Land of Light, Sairo was pardoned and allowed to return home to reunite with his father, Seven. But after thousands of years apart, their everyday life together was full of petty squabbles. Seven: If you think this so-called strength is enough to protect peace in the universe, you'll never become an Ultraman who can stand on his own! Sairo: You're lecturing me again! Why can you never acknowledge me? Why have you never told me who my mother is? I'm your only son! The rebellious boy and his stubborn old man grew increasingly at odds～ Then, one day! Sairo suddenly left the Land of Light without a word and headed for the fated place so deeply connected to it. Earth!