Pirates: I have seven evil masters

Story of: Pirates: I have seven evil mastersQin Feng traveled to the pirate world and unexpectedly found seven evil disciples as his masters. After ten years of honing his sword, he was able to conquer the new world without any obstacles from gods or demons. Garp: "Oh my god, he is actually Rocks' apprentice. His Armament Haki is far better than mine!" Red Hair: "This damn oppressive feeling, the Haki entangled him is even better than me." Hawkeye: "His swordsmanship is better than mine. From now on, the title of the world's number one swordsman does not belong to me." Kaido: "He is even better than the captain. He is the strongest creature in the world." The introduction is a bit second-year, so let's move on to the main text. It is invincible without a system.