No one ever said that pirates fight fair, but if someone bites you in a fight then it's perfectly reasonable to bite them back. Sanji has to learn that life isn't fair and nothing else is either but that bad jokes and falling in love certainly makes unlife worth living. Zosan/Sanzo tw:blood and blood drinking

tide. noun. the alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun. [Post-Wano] Sanji would kiss him if that were not a terrible, terrible idea.

“Are you familiar with the custom of the sea?” Robin asked. “The one among shipwreck survivors.” Sanji was the cook. It was his job to feed the crew.