One Piece: The Strongest Swordsman - Chapter 23: Instant Kill

Failing in his job hunting, Sanada Kyouichirou was hopeless in this society. When kyouichirou had thrown himself towards the bottom of a cliff. When he woke up his body had returned towards when he was in fifth grade of elementary school. He did not want to have any regrets in this life so he had decided on building up an harem in this second life.

The elder sister that he admired, a senior and president of the student council at a school for rich young girls, a strong minded upper classman at school. The poison fang of Kyouichirou who had pretended to be a innocent child attacks those girls.

He doesn’t want to be wanted for bounty, or be a pirate, but if there’s no other choice, he can only become a pirate…..

Crossing to One Piece world, he became Roger’s younger brother.

Tomokui Kanata has been reincarnated into the weakest race, goblin, and given a new name, Rou, after having undergone an unfortunate death. However goblin Rou has retained his previous life’s memories, an unusual evolution, as well as being blessed with ability to gain status boosts from eating.