Ultraman: I Built the Strongest Training Ground!

I, an ordinary Baltan, was supposed to die to a group of pirates in the universe, but I never expected to be pulled into a mysterious training ground. There are countless monsters and people in the universe here, and their origins are also all kinds of strange. Some once served the Dark Emperor, some had legends of defeating the Ultra Brothers, and some were even able to conquer a universe on their own. After countless trainings, during an assessment, I met an Ultra Warrior, a Warrior of Light who was once considered the biggest enemy by our radical faction. I wanted to sneak away, but I didn't expect that this Ultra Warrior couldn't even defeat a monster that was used to gain me points. Seeing him trying his best, I was confused. Didn't you say that all the Ultra Warriors are extremely powerful? The introduction is weak, please read the text! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.