What Does It Mean That the Initial Monster Is the Light of the Earth?

(Big Monster Fighting), (Ultraman), (Non-Dark), (Non-Invincible), (Panel Upgrade) I was originally selected to be sent to another world to be a hero, but I was tortured by a little ghost girl on the way and turned me into a giant of light. But I didn't expect that on the way to the earth, I was intercepted by Reblondo and finally became Leonix. But what does it mean that the initial monster is the light of the earth? Beria: Kids, I can't beat him Ray Brando: Kids, I am the legendary elbow-resistant king Xu Xingguang: Children, the braves of light are also brave "About the fact that I was about to take the college entrance examination and was created by Universiade to be a brave man from another world, but I traveled through time and became Leonix. Am I doing something wrong?"