I can increase my proficiency

Zhang Hao got a game system.
Since then, his whole life seems to have become a game.
Practice the Shaoyang pile once, and the proficiency will increase by one.
Practicing Luohanquan once, the proficiency will be increased by one, the proficiency (100/100), Luohanquan will be perfect.
For a long time, Zhang Hao thought that he had obtained a hard-working and simple system where only hard work will pay off.
Until...he saw the extra plus sign behind the proficiency....