How Could Someone Who Awakened the Power of Power Be Mute?

After traveling through time and becoming mute, he awakened to the taboo "Truth Word". Until Sirens stole a bottle of defective potion and said the first word in his life—— The potion bottle repaired itself. The magic awakens. Power Word awakens. It turns out that it's not that I can't speak. This world can't bear him saying too much. One day, I will tell the whole world what I have not finished.