Starting from the Guardian of the Tao, Spreading Throughout the Ages

From today on, I will be your protector... Don't worry, whatever can't kill me will make me stronger! Even though his martial arts are ever-changing and his techniques are exquisite, he can't stop my punch! What kind of strange golden finger does it carry on the royal road that I accidentally crossed? Since you have become a protector, of course you have to find a beautiful one to protect you! Also known as "One Punch Protector", "The Development of a Sword Master", "Loli Girl Transformed into a Royal Sword Master"...