The inside cover depicts Sanji's different looks over time; his child self and pre- and post-timeskip adult selves look forward, and Jodie and Eliza's imagined future of Sanji faces away.
Yuto Tsukuda: After my work on the culinary manga Food Wars: Shokugeki no Soma, I had the honor of working on the Sanji spin-off! Thank you to Shun Saeki for his amazing art, to Yuki Morisaki for his expertise on the science of cooking, to my editor for his supervision and of course, to Eiichiro Oda! Happy reading!
Shun Saeki: It's an immense honor to be able to contribute to a work as prestigious as One Piece. Even if the power of the original series and the quality of Yuto Tsukuda's storyboards outclassed me for every chapter, I forced myself to create the best drawings I could!
2. Sanji, Banquet Assistant (サンジ、助太刀の宴,Sanji, Sukedachi no Utage?): The Straw Hat Pirates find Ruibe stranded in the ocean, and after saving him, discover that he was trying to catch a legendary fish for his daughter's wedding. Sanji offers to prepare the notoriously difficult fish, and after numerous failed attempts, succeeds at making a delicious dish.
3. A Beautiful Dessert (ビューティフル・デザート,Byūtifuru Dezāto?): While celebrating the defeat of Crocodile, the Straw Hats overwhelm Terracotta and her cooks, causing them to panic. Sanji offers to help prepare more food, shocking them with his efficiency and love of cooking. When the Straw Hats prepare to leave the Arabasta Kingdom, he receives a copy of the palace's secret cookbook as thanks.
5. Crooked Cooks, Soba Salvation (庖丁無頼蕎麦遣,Hōchō Burai Soba-yarai?): While preparing to open a soba kiosk in the Flower Capital, Sanji notices that another kiosk serves food of inferior quality to the poorest customers. In response, Sanji challenges the kiosk's owner to a soba cooking contest, which he wins several days later.
6. Second in Command (副料理長,Fuku Ryōrichō?): As a child, Sanji is personally asked to cook a meal for one of the Baratie's customers. Despite being sabotaged by the other cooks, he makes a dish that impresses the customer and Zeff.
While eating a meal, Sanji finds out about the various high-end ingredients available on Fish-Man Island, including juicy Sea King meat, a rich and salty jelly sauce, a sea-flavored sea hash, and a rolled cake. He decides to cook with them, and begins asking directions to the nearest kitchen. However, the mermaids he's with don't want him to leave, and begin asking him to stay. He manages to push through his temptations and begins to leave, but upon seeing Shirahoshi, is turned into stone and misses his chance to cook.