Pirate's Sword Hero

"Although I like Himura Kenshin very much, it doesn't mean that I have to use an inverted blade! Although the B box is full, it doesn't hurt!" Ai Lan looked at the inverted blade in his hand and the system's tasks. A painful cry. "You can't use other weapons in five years. Are you kidding me? Or in the world of One Piece, I will kill me if I don't kill anyone!" PS: The introduction is invalid, I don't know how to write it, so be it. The protagonist is neither the Virgin nor indiscriminate killing. Hey ^_^