tsunakun

The series follows Dr. Kenzo Tenma as he pursues a young psychopath/sociopath named Johan, whose life Tenma had once saved.

There once was a man named Gold Rodger, a pirate, and he was given the glorious title: ‘King of the Pirates’ for possessing the legendary treasure, One Piece. He had fame, fortune, and power, until one day, he caught and brought to the execution tower to be executed.