Sabo

Sabo is a 10 year old boy who lives in Gray Terminal and was a friend of Ace during their childhood. He and Ace were secretly saving money to buy a pirate ship together.

Appearance
As a ten year old boy, he has a chipped tooth and wears a large top hat with a pair of goggles around it as well as a jacket and a scarf. He has a bandage on his right cheek.

Personality
Not much is known about Sabo's personality at this time. He seems to be protective of his dreams and goals as he agreed with Ace that the two of them had to kill Luffy so that he couldn't tell anyone about their treasure, though neither Ace nor Sabo "knew" how to kill a person nor had experience implying some degree of innocence despite the profession. Sabo seems to be less "hardened" than Ace and Luffy as he took note of how Porchemy had a real sword (implying a lack of combat experience).

Abilities and Powers
He appears to have good thieving skills as well, since he was able to rob so many people to get their money and valuables.

History
If it weren't for the Sabo incident and a troublesome brother like you, I probably would not have wanted to live....

Sabo's name is first mentioned by Ace during his final words at Marineford. However, he makes his appearance nine chapters later in a flashback of three months after Luffy and Ace met for the first time.

He is first introduced when Ace arrives at the Gray Terminal, after having ditched Luffy along the way. Sabo tells Ace that he's late and that he (Sabo) completed his money-collecting job. Ace replies that he also did his share. Ace then handed Sabo his collected money. Sabo counts and says that Ace collected more money than him again. Ace says that they still have a long way to go before they can buy a pirate ship. Sabo then puts the money in a hidden underground stash, admiring their cumulative work of five years, and Ace tells him to close it because someone else might see them. Luffy, overhearing their conversation, suddenly shows up and says that he wants to be a pirate too. Sabo and Ace, however, are not happy to find that Luffy finally managed to successfully tail Ace all the way to the Grey Terminal. Determined to keep him from telling anyone their secret, they determine that Luffy must be killed and proceed to tie him to a tree. However, they are unable to decide who should do it, since both of them have never actually killed anyone before.

Before they can decide, they hear someone approaching and untie Luffy to go hide. They then see that the person that Ace stole the money from is Porchemy of the Bluejam Pirate crew. It is revealed that Sabo and Ace are actually quite notorious thieves, even in the lawless Gray Terminal. The two suddenly notice Luffy went missing and then see that he was caught by Porchemy. Luffy calls out to Ace for help. Recognizing the name, Porchemy decides that Luffy must know something about the stolen money, and Sabo and Ace both watch as Porchemy takes Luffy away.