I Am Invincible, So What

Leo Sterling is a martial arts prodigy whose father is the Sovereign. While the Omni-Genesis Art they practice supposedly maxes out at the second tier, Leo unknowingly reaches the peak of the ninth tier, becoming an ultimate master.

However, his father and mentors deliberately hide his true strength from him. To protect him and keep his training undisturbed, they trick Leo into believing his supreme techniques are just ordinary gymnastics.