The Vice Captain of One Piece Slime Fruit

Travel through the world of pirates and become Luffy's deputy captain! (Following the boat, funny, making up for regrets, no heroine, what is Luffy's ultimate dream?) Luffy looked at He Feng, who could turn into a slime, and said with stars in his eyes: "Can you be my partner?" He Feng obtains the Great Sage System "System, using Predator" "Ding", successfully preyed on the spider and obtained the tough silk skill! "Ding, the analysis is successful and you gain the domineering power of knowledge and knowledge." "Come on, congratulations on getting the Zanpakuto Hyōrinmaru" Robin: I need a pillow. Here I come, He Feng turns into a slime in seconds! Luffy said to He Feng: "Do you know that besides the Pirate King, I also have an ultimate goal, which is..."