In the vast universe, Ultraman Thunderwing was once a carefree existence, wandering around with nothing to do all day long. He was jokingly called the "universe son of a bitch" by all parties in the universe. He enjoyed an unrestrained life and had no interest in the mission of protecting the universe.
However, the early warning system of Ultra Star detected that a planet named Planet Ai was facing a huge crisis. Planet Ai is very similar to the Earth, with vast oceans, dense forests and rich ecosystems, nurturing countless lives. But now, a dark force is quietly approaching, trying to devour this beautiful planet.
Ultra Star immediately took action, but due to the many previous cosmic crises, the Kingdom of Light could no longer send out more young and powerful Ultraman. Ultraman Zero is racking his brains to find the right person to save the planet Azera.
At this moment, Zero suddenly remembered his childhood playmate - Ultraman Leo's son Thunder Wing. Although he was well aware of Lei Yi's casual and carefree temperament, Zero decided to go find him. As expected, Thunder Wings decisively refused at first, claiming that he just wanted to continue roaming the universe. But Zero didn't give up, and started the soft-and-hard-playing mode, constantly telling Lei Yi about the beauty of Planet Ai and the desperate situation faced by life there. He even did not hesitate to lend the Shield of Palagi to Thunder Wing. After hearing this, Lei Wing decisively agreed to go to the planet Azera. In this way, Lei Yi embarked on a journey full of unknowns, and the chapter of his guardianship slowly began on Planet Ai.