Brook

Brook, also known as "Humming" Brook, is one of the protagonists from the One Piece game series. He is the musician of the Straw Hat Pirates. Already a pirate before the time of Roger, Brook first enters the Grand Line as vice-captain of the music-themed Rumbar Pirates.

Leaving their pet, the infant whale Laboon at Reverse Mountain, they promise to return after sailing around the world. Instead, they are annihilated, with one exception. Fifty years later, Brook's goal is still to fulfill his late crew's promise, and to that end he joins the Straw Hat Pirates.

He is an excellent musician, who says that he can play any instrument, although he is usually seen playing the violin. He can even influence people with his music to the point of making them fall asleep. While separated from the other Straw Hats, and incognito as "Soul King" Brook, he gains world fame, filling concert halls with fans.

The power of the Paramecia-type Devil Fruit: the "Revive-Revive Fruit" allows "Dead Bones" Brook to rise again and live a second life as a skeleton. Eventually, he learns how to use his devil fruit ability to leave his skeleton body and explore his surroundings as a disembodied soul. He is also a skilled fencer who uses a shikomizue (a Japanese cane sword) in battle. His reduced weight allows him to jump extraordinarily high and to run across water.

History
Brook was once a member of the Rumbar Pirates. While traveling with them, Brook found a baby whale and named him Laboon. The whale could not follow them to Grand-Line and they had to leave him behind with the promise of returning one day. The crew of the Rumbar Pirates, including Brook, died in battle. Only Brook was resurrected due to his devil fruit ability, though his body became a skeleton by the time he discovered it.

He meets the pirates when they found a ghost-ship while drifting in the Florian Triangle. Upon seeing him, Luffy immediately asked him to join his crew and Brook eventually agreed when his curse is lifted by Moria's defeat.