Human inventions have developed from the lowest level to the development of medical devices that can completely cure cancer. They invented the ray gun. They discovered time travel 20 years later. One month after the discovery of time travel, a monster crisis appeared on the earth. At that time, Aini was the male protagonist. His father's name was Ai Yan. Ai Yan was the inventor of the ray gun. Once, he and his wife were on a mission to Mars. It was discovered that the monster (Mo Hela) was attacked and killed by the monster. The male protagonist learned the news in pain for a month. Suddenly a monster appeared on the earth. The male protagonist Aini came out and saw the monster destroying the city. He used a car to attract the monster. Suddenly the male protagonist was hit by the light emitted by the monster. At this time, an alien "Ultraman Kaidi" rescued him and fought with him against the monster.
