Ultraman: I Saved Zero, and Now He Won't Leave Me Alone

(Two Systems: one for the reborn protagonist, one for the transmigrator, and another in the hands of the villain)

Chen Lingfei was reborn on Earth, in some forgotten corner of the universe. There were no monsters here, nor any Ultraman. Of course, as a transmigrator, he had a System of his own. Unfortunately, it was a complete failure: all it gave Chen Lingfei was the ability to transform, and that was it. It never issued missions or asked him to make choices.

Then one day, Chen Lingfei transformed for the first time and went to Mars, where he rescued Zero after he escaped from the Land of Light. From then on, Zero stuck to him like glue.

Once Zero learned that Chen Lingfei was the blue giant who had saved him, all he did every day was ask Chen Lingfei to help rescue people from the Land of Light.