I wanted to change my job as a sword master, but failed to change my job in the dark thunder ruins and became a berserker. Kazan, a ghost-handed white-haired boy suffering from Kazan syndrome, came from the world of One Piece with a knife in Arad. From a lonely Alone, to a big family. Everyone on the boat. Sugar is my brother’s favorite cub!!! As long as I become Kumasi, my brother can stay with Pepe forever, right?! My eldest brother is To become the strongest man in the world is not something you can provoke! Ah la la, my figure is better than my sister... Oh my, my age is younger than my sister... Kazan under the boat. Come be my little brother! From today on I will be your big brother!