One Piece: The Detective Memoirs of Chief Straw Hat LuffyEpisode 1

In an alternate reality world that resembles Edo Period Japan, Luffy acts as a member of the police. This is made up of two adventures: in the first, Buggy makes trouble in the town; in the second, a mysterious girl named Vivi appears (aired after Episode 253). This special contains several cameos from characters throughout the entire series. A second pair of episodes were aired after episode 290, continuing this story, as part of the New Year's special.

• 34Sailor Moon Sailor StarsUp to EP 34
• 1Osomatsu-san MovieUp to EP 1
• 12Ojisan and MarshmallowUp to EP 12
• 3Kakegurui Picture DramaUp to EP 3
• 13Magic-Kyun! RenaissanceUp to EP 13
• 1Yuyushiki: Komarasetari, KomarasaretariUp to EP 1
• 12Burning KabaddiUp to EP 12
• 1Gunslinger Stratos The Animation: Kikan/Kaze no YukueUp to EP 1
• 1Outburst Dreamer Boys: It Is the Destiny of Those Born as MenUp to EP 1
• 12Special 7: Special Crime Investigation UnitUp to EP 12
• 12WIXOSS Diva(A)LiveUp to EP 12
• 1Tropical-Rouge! Precure Movie: Yuki no Princess to Kiseki no Yubiwa!Up to EP 1