Zero Zone Zero: Isn't It Reasonable for the Investigator to Be Beaten to Death?

[Pseudo-invincible flow + no system] Zhou Kai, who had stayed up late for several days, died suddenly and was reincarnated into the world of zero. Unfortunately, it was during the explosion of Hole Zero. Fortunately, it was able to absorb ether and gradually become stronger, and even had the ability to transform. So Zhou Kai absorbed the etheric energy and became stronger in this dangerous world, killing each one with one punch. More than ten years later, Hollow Zero erupted again. This time Zhou Kai couldn't bear it anymore. The home he lived in was gone, and his out-of-print Star Knight Medal was also gone! This time, he's going to blow up Hole Zero!