[The main storyline follows monsters evolving into Super Beasts, raising an Ace Killer, and driving Ultraman Ace to the brink of madness. There will be no heroine for now.]
Luo, an ordinary young man, unexpectedly transmigrates into the Ultraman universe and becomes the extradimensional being Yapool. Soon after arriving in the Ultraman X universe, he activates the Super Beast Evolution System, changing his fate from that moment on.
With the System’s help, Luo can collect all kinds of monsters and continuously evolve his Super Beasts. In the Ultraman X universe, he successfully obtains the blueprint for the X Head Slugger, and the Ace Killer shows off its might. In the Ultraman R/B universe, he cleverly uses Super Beasts to fight monsters, teaches the Minato brothers how to fight, and battles alongside them. He also sends Celeza to meet O-50’s dream-making master, Orb, and gradually makes a name for himself.
In the Ultraman Trigger universe, the threat of the Sphia looms. Luo leads his evolved Super Beast army to protect Earth alongside Trigger and Decker. He picks up a little sidekick, and in battle, his Super Beasts evolve again and again, growing ever more powerful.
From the confusion of first venturing into the universe to commanding a mighty army of Super Beasts, Luo grows through his adventures in the Ultraman universe. He travels between different universes, protecting peace with his Super Beast army and writing a legend of his own.
