You have become a grandmaster-level martial artist a person who has not only completely mastered their respected martial art but perfected and push it further beyond what it was originally capable of and your body has reached superhuman level.
You are capable of demolishing a building with a single strike and taking hits at the same level, moving at a speed that can leave behind after image to even train fighters with superhuman capability, read and predict the attack of your opponent with incredible accuracy. Note that this massively improves any other martial art power you may have it will also give you a massive boost to teaching and learning new martial art.
You have the choice between sei and dou ki. Fighters with Sei ki are calm and collected in temperament they prefer a methodical approach to fighting which usually give them a more defensive fighting style with an emphasis on counter-attacks, Fighter with Dou ki on the other hand are passionate and aggressive they rarely stay from the offensive when in a fight and prefer to beat their opponent down with unmatched ferocity. Depending on Which type of ki you pick your martial art will be more offensive or defensive in nature becoming better in that aspect.
You may also choose a martial philosophy between the life-saving fist and the killing fist. Live-saving fists give your martial art a focus on subduing and neutralizing your opponent without taking their life while the life-taking fists give your marital art a focus on killing your enemy giving you a more lethal edge in combat