Just Became Ultraman, Alien Civilization Invaded?

Chen Yang travels through a parallel world. With the explosion of technology, mankind has begun the mecha era. However, in the process of exploring the universe, the coordinates of the earth were exposed and were targeted by many alien civilizations. Fortunately, as a time traveler, the system awakens. By constantly signing in, you can unlock the qualifications for Diga's human body. On the day Chen Yang got the Divine Light Rod, the alien fleet launched a massive attack, and he found that the enemy was a bit familiar. "The Great Emperor of the Dark Universe? Instead of going to the Kingdom of Light, you came to Earth instead?" "Visitors have arrived, seeking human refuge? Dark Zaki is also here?" "What is the ultimate life form? It wants to occupy the earth and rebuild its homeland. Is the earth worthy?" "Wait a minute, you said that the ruins of Luluye were dug up on this planet, and there is something called the Eternal Core?" … Chen Yang gradually discovered. The world I traveled through didn't seem quite right...