A Minor from the Land of Light Takes on the Dark Emperor?

My name is Jiana Li. I transmigrated into the Ultraman universe, and after nine hundred years, I still haven't learned a single beam attack.

My Infinite Buff Stacking System has awakened, and I thought I was about to reach the pinnacle of Ultraman life!

[Training buff stacking: Light energy -36, mental strength -68, physique -96...]

Jiana Li: Fine, fine, fine! Who taught you to stack buffs like this?!