Navigation: Garp Sent Me as an Undercover Agent to Build the Royal Group

Ling Yun traveled through the world of pirates and became a marine under Garp. It is bound to the sign-in system, and you can easily become stronger by signing in every day, so he became a salty fish after being ruined. Three-color Haki, Sixth Marine Style, Zanken Zuki, Ninjutsu Taijutsu, Blood Succession Boundary, and Zanpakuto. Garp has always wanted to train Luffy as a marine, in order to prevent his grandson from becoming a pirate and doing evil and becoming a great villain. Therefore, Garp sent Ling Yun to work as an undercover agent next to Luffy, supervise Luffy's movements, and guide Luffy to correct his evil ways. Who would have thought that after becoming a pirate, Ling Yun would no longer be in trouble. As the deputy captain, in order to improve the strength of the crew, I provide them with special training. Luffy: Ling Yun, I want to learn Bai Da and Shunpo from you. Zoro: Can you teach me the art of swordsmanship? I want to become stronger! Nami: Hey, Hey, Oni-chan, can you give me the Zanpakutō Sode Shirayuki? Robin: Do you think it's possible to learn the wood release ninjutsu with the flower fruit's ability? Whitebeard: Ling Yun will be the strongest man in this era! Hancock: Only Ling Yun is worthy of being followed and served! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.