One Piece: Roger's Captive Chef from Warcraft

(No heroine, no system, passion, many unknown secrets in yy One Piece. Chapters 7-16 are similar to a small theater, you can skip it if you are not interested.) Leo accidentally traveled from the World of Warcraft to the World of Pirates, and accidentally became Roger's "captive" chef. Rocks invited them to attack the Valley of the Gods. Garp invited them to protect the Celestial Dragons. Roger said, no one can get the Valley of the Gods, I will sink it! Why did Roger and Garp's parents die? What's D's secret? What is recorded in the historical text? Where is the real final island? Who is Im? Leo accompanied the Roger Pirates and slowly uncovered mysteries one after another.