Happosai, the perverted Master of Anything Goes Martial Arts, falls through a magical portal and ends up in the Grand Line of One Piece. Happosai finds himself on the Thousand Sunny, stealing panties from Nami and Robin, and putting his hands on them in unwanted ways. Naturally, Nami and Robin fend him off for a bit, but he continues to make a nuisance of himself.

And then Sanji shows up just in time to see Nami and Robin chasing Happosai (who is carrying stolen panties). Angered at how Happosai upset the ladies, Sanji challenges Happosai to a one on one fight, on the nearest island.

Rules:

This is a one on one fight. No interference from Nami, Robin, Luffy, or any of the Straw Hats. Nor anyone else in either the One Piece universe or the Ranmaverse.

Three variants. One is with pre time-skip Sanji. Second is with post time skip Sanji. The third is post time-skip Sanji with the Vinsmoke Raid Suit.

Who wins the fight?