Sabo

"Flame Emperor" Sabo is the Revolutionary Army's chief of staff, recognized as the No. 2 of the entire organization and outranked only by Supreme Commander Monkey D. Dragon. He is also the sworn brother of the notorious pirates Monkey D. Luffy and the late Portgas D. Ace. Sabo ate the Mera Mera no mi (the flame flame fruit) which gave him the ability to control and become fire at will. As an adult, Sabo became taller and more muscular. He has matured greatly, with more pronounced facial symmetry and a scar he acquired over his left eye, which was inflicted when Saint Jalmack selfishly blew up the fishing boat Sabo used to set out to sea, leaving him with serious burns and critical injuries. He resembles Luffy enough to allow him to easily deceive opponents as perceptive as Diamante into thinking he was "Lucy" by simply wearing the same outfit, although Sabo is still taller than his younger brother. His hair has also grown noticeably longer since his youth, which he styled deliberately to cover up his eye scar.