I Was Already Invincible, Yet I Became the Protagonist

They say that a balanced scale means the weights are equal, and the two sides can be switched around.

What about when they're unequal?

Is the value in this so-called equivalent exchange really equal?

This time, I'll be the scale...

So I'm the legendary protagonist, then? (laughs)

(P.S. This book is a passion project. Updates whenever I feel like it.)