What episode is "A Mysterious Boy With a Horn and Robin's Deduction!" in One Piece?
"A Mysterious Boy With a Horn and Robin's Deduction!" is episode 221 of One Piece.
Spoiler-Safe Summary
safe readAs the crew grapples with memory loss affecting only those who were asleep, a mysterious boy with a horn appears playing a flute, prompting Robin’s deductions and a surprising declaration that stirs hope among the Straw Hats.
Full Plot Summary
spoilersRobin suggests that only those who were sleeping lost their memories. Luffy and the others then remember seeing the mysterious boy who played some kind of flute. Later that night, they discover the boy outside and Luffy tries to fight him. At the last second, he proclaims his memory has returned.
Episode FAQ
4 quick answersIs "A Mysterious Boy With a Horn and Robin's Deduction!" canon or filler?
"A Mysterious Boy With a Horn and Robin's Deduction!" is listed as canon in the current AnimeAnchor guide.
What story arc is "A Mysterious Boy With a Horn and Robin's Deduction!" part of?
"A Mysterious Boy With a Horn and Robin's Deduction!" is part of the Enies Lobby Arc.
Can I read this without spoilers?
Yes. Start with the spoiler-safe summary, then reveal the full plot only when you want the complete episode breakdown.
Series Cast
18Browse the main cast connected to this episode guide.
Brook main 
Franky main 
Jimbei main 
Monkey D. Luffy main 
Nami main 
Nico Robin main 
Roronoa Zoro main 
Sanji main 
Tony Tony Chopper main 
Usopp main 
Buggy the Clown supporting 
Dracule Mihawk supporting 
Emporio Ivankov supporting 
Gol D. Roger supporting 
Monkey D. Dragon supporting 
Monkey D. Garp supporting 
Portgas D. Ace supporting 
Rayleigh supporting Related Movies
6Franchise movie releases are kept separate from the TV episode spine.
One Piece: The Movie 2000 
One Piece: Clockwork Island Adventure 2001 
One Piece: Chopper's Miracle on the Blob Island 2002 
One Piece: Dead End Adventure 2003 
One Piece: The Cursed Holy Sword 2004 
One Piece: Baron Omatsuri and the Secret Island 2005