Ability Setup: Omniscient Acquisition

The protagonist’s supernatural ability is tied to perfect memory and perfect proficiency: As soon as he stops practicing, grows complacent, or lets his mind become restless, **all the proficiency he has accumulated will steadily decline**. His peak state of mind will collapse, and his selfless state will vanish completely. Even if you train hard for ten years and become a grandmaster, lie flat for half a year and you’ll fall back to being an ordinary person.