One Piece: Grinding for Experience as a Marines Recruit

Li Maohun travels through the world of pirates.

How can he, who is thin and mediocre in talent, survive in a world where the average person is two meters tall and muscular?

The answer is the liver.

Li Mao, who has a personal proficiency panel, can use his liver experience to improve his skill proficiency, thereby improving his attributes and becoming stronger and stronger.

Repeatedly improve your proficiency in the Sixth Form of the Navy and push it to the extreme.

Repeatedly gaining proficiency in Haki by seeing and hearing colors allows it to evolve into predicting the future.

Repeatedly improve your armament and domineering proficiency, making yourself a numerical monster that combines offense and defense.

Repeatedly gaining proficiency in the domineering power of the King of Lives, he finally conquered the sea.

He has repeatedly gained proficiency in the Devil Fruit, and his development of the fruit is unparalleled.

This is the story of a man who rose from a navy soldier to the master of the sea.