The Predecessor's Speech

It was one thing after another, with Dex suddenly transforming into a girl and showing everyone a couple of window pop-ups that showed the past subjugations of the World Eater. 

While Satoshi was slightly distracted by Dex's sudden shift as a humanoid, they realized a couple of things regarding the Tower of Resonance. 

As it turned out, there was a chosen one in the past! And that person did not have any powers at all. Instead, the amount of energy he had was unrivaled, and had he awakened a superpower, he would've been one of the universe's strongest.

Satoshi could already tell where this was going… after all, it was that person who powered the four Tower of Resonances with the help of his summoned beasts.