Lin Nuo opens his eyes and discovers that he has come back from the dead.
One moment, he was a newly minted genin in Konoha who had just learned the Eight Gates. On his first mission, he had unwillingly bled out to the last drop while protecting his teammates. The next, he had become a new recruit in the Marines in the world of Pirate King.
This world is even more dangerous, with disasters striking at every turn and powerful fighters capable of laying waste to the world. His greatest trump card, the Eight Gates, is a double-edged sword that burns through his life. The death he suffered in his previous life has left a mark deep in Lin Nuo's bones.
So he chooses a different path. If he can talk his way out of trouble, he never fights. If he can win with a plan, he never reveals his strength. If the Six Powers can handle an enemy, he never opens the First Gate. "The Eight Gates are a trump card to force a way out when defeat seems certain, not a tool for showing off." "In my plans, enemies only ever come in two forms: 'easy to take out in one move' and 'not worth provoking for now.'" This is the story of a cautious Marine to his very core, who relies on intelligence, careful planning, and just a tiny bit of hidden strength to quietly rise to the top of the world in the chaotic Great Pirate Era.
The protagonist is like an M. After reading more than 20 chapters, he is either being ridiculed or on the way to being ridiculed. He doesn't refute and just gets humiliated.