Lu Zhao was a die-hard Ultraman fan. One day, as he was hoping to revisit the classics, an antique disc and an old DVD player sent him to a world with monsters but no Ultraman.
Without Ultraman, humanity in this world took the same path as in Pacific Rim, relying on steel giants to fight off the invaders.
As a transmigrator, he spent twenty years running a secondhand bookstore on this Ultraman-less planet. His biggest adventures were haggling with suppliers and helping his pretty tenant catch mice.
Then the Space Beasts arrived in this world. Perhaps to destroy them, the light of Nexus came here too, and sought out Lu Zhao.
After hesitating for 0.1 seconds, he took hold of the Evoltruster.