The Sword Master Who Started as a Pirate

Ron traveled to the pirate world and obtained an upgrade system. From then on, a powerful and invincible sword master appeared in the pirate world. Auntie: "He actually cut me seriously with a single knife. He shouldn't be an enemy of Ron." Kaido: "He actually cut me to the point where I can't recover." Warring States: "If Ron comes to the Navy, then this will be the Navy era." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.