Leo Vance has an exceptional physique for martial arts. His father is The Supreme One, and the Myriad Phenomena Infinity Art they practice has no room for advancement beyond the second level. Unbeknownst to him, Leo Vance has reached the pinnacle of the Ninth Level, becoming a supreme master, but his true power is deliberately hidden by his father and several masters. They intentionally lead Leo Vance to believe he is just practicing ordinary calisthenics, aiming to protect him and allow him to cultivate without interference.