Sind

Sind is a boy who was being held captive in the Biscuit Room, at Punk Hazard.

Appearance
Sind became much larger than an average boy due to the experiments done on him at Punk Hazard. He has a head, that is big and not very proportionate to his body, and light colored hair that is unkempt and goes over his ears. He also has light colored eyebrows, and wore a sleeveless shirt with shorts. Whenever Kinemon gave the kids jackets, his was light colored with a dark colored hood, and fur at the end of the sleeves.

Personality
When deprived of the drug NHC10, Sind eventually became very aggressive, brutally punching Luffy into the pipes. Otherwise, he is a normal and timid child, as he was scared of Kinemon's severed head.

Abilities and Powers
Due to the experiments, Sind was granted extreme strength that rivals that of natural giant children, enough to send Luffy crashing into the pipes in one punch.

Punk Hazard Arc
At some point, he was taken from his family after being told he was sick and would be made healthy again. He stayed with the other children in Biscuits Room on Punk Hazard until the Straw Hats broke them out. Later, he succumbed to the withdrawal symptoms of NHC10, which he and the other children were fed regularly in candy form. Eventually, Sind became very aggressive, punching Luffy through the pipes until Usopp knocked the children all out with sleeping gas, and then the Straw Hats chaining the children up for their safety.