S21E936: Get the Hang of It! The Land of Wano's Haki - Ryuo!

A 40-second preview of this episode has been released which showed that Luffy is trying to elevate his ability for his final fight against Kaido. The secret identity of Hiyori has already shaken Zoro in this episode, We will see more backstory of Hiyori and Old Man Hyogoro is going to challenge a formidable opponent, by the looks of it he might give Luffy a breakthrough he needs in his practice