|Romanized Name:||Misutā Nain|
|Official English Name:||Mr. 9|
|Debut:||Chapter 103; Episode 62|
|Affiliations:||Baroque Works (former)|
|Occupations:||Baroque Works Frontier Agent (former); Bounty Hunter|
|Japanese VA:||Yasuhiro Takato|
|Odex English VA:||Brian Zimmerman|
|4Kids English VA:||Michael Sinterniklaas|
|Funi English VA:||Chris Patton|
Mr. 9 is a young man who wears a golden crown on top of his red hair and has his agent number written on his cheeks. He wears a green suit with white lace along with a ruffled red scarf. His attire makes him look like a prince or a king, but he isn't.
After two years, his hair is much longer, and he has grown a bit of a mustache. He wears a different, longer scarf and has erased his agent numbers. His clothes also look different, lacking the lace that trimmed the collar and sleeves. His crown is the same, though. 
His favorite phrase is "Bye bye, baby;" these were his last words to Miss Wednesday before he attempted to hold off Mr. 5 so she could escape. Unlike Officer Agents, who seem to believe that friendship is a sign of weakness, Mr. 9 is shown to highly value friendship and loyalty, as shown when he fought for Vivi's sake.
Abilities and PowersEdit
Mr. 9 was skilled enough to become a Frontier Agent. He uses his metal bats in conjunction with his acrobatic skills to deal damage to foes. His body is quite flexible, as he is able to perform several acrobatic jumps and cartwheels. Despite this, he is a weak foe; his acrobatics being useless against Officer Agents such as Mr. 5, and he is clumsy enough to fall off a building unprovoked while fighting Zoro.
Mr. 9 wields two steel bats and uses them in conjunction with his "acrobatics". With the momentum generated from his gymnastic feats, they can be quite powerful. He also hides steel ropes within the bats, allowing to subdue foes as shown in his fight against Zoro. However, this technique was used against him, causing his defeat. He also used a bazooka during the Reverse Mountain Arc and was seen wielding a pistol when first introduced.
- Nekketsu Nine Konjo Bat (熱血ナイン根性バット Nekketsu Nain Konjō Batto?, Hot Blooded Bat of Guts): A pair of steel bats which, when coupled with his acrobatics, create a powerful close-combat attack.
- Kattobase Shikomi Bat (カッ飛ばせ仕込みバット Kattobase Shikomi Batto?, Home-Run Hide-A-Bat): His other attack, which uses the steel rope inside the bats to bind the opponent. This attack had little effect on Roronoa Zoro and Mr. 5. In the anime, the rope was replaced with chain.
Whiskey Peak ArcEdit
He and Vivi (known as Miss Wednesday at the time) met the Straw Hat Pirates during the Reverse Mountain Arc while trying to kill Laboon in order to bring the whale meat to Whiskey Peak as food for the town. The Straw Hats gave them a ride when they accidentally lost their Log Pose.
After Vivi's identity was exposed by Mr. 5 and Miss Valentine, Mr. 9 tried to hold them off to allow her to escape, as he had grown fond of Vivi during their time together. He declared that they were still partners, effectively placing his loyalty to her above his loyalty to Baroque Works. Mr. 5 was irritated by this and finished him off with a Nose Cannon attack that knocked Mr. 9 into a river.
Two Years LaterEdit
Mr. 9 is shown two years later alive and well, still living in Whiskey Peak. He and Miss Monday have apparently married and had a child, and he is seen playing with the infant by throwing them in the air with his baseball bats.
- In a character poll, Mr. 9 is currently ranked the 122nd most popular character in One Piece.
- The Mr. 9 pair has a "performing" theme with dancing and acrobatics.
- ↑ 1.0 1.1 1.2 1.3 1.4 One Piece Manga and Anime — Vol. 12 Chapter 103 (p. 8) and Episode 62, Mister 9 is introduced.
- ↑ 2.0 2.1 One Piece Manga — Vol. 64 Chapter 632, cover story: From the Decks of the World Vol. 17, After the time skip, still living in Whiskey Peak with his wife Miss Monday.