Seafaring: Weak Body? I Can Knock Out Any Four Emperor with One Punch

Lin En transmigrates into a world of seafaring and stumbles into the middle of a battle between Garp and the pirates. From the start, he gets blasted by a cannonball and is about to die all over again. At the crucial moment, he awakens the Endless Evolution System, and his body grows infinitely stronger. He catches a cannonball with his bare hands, shocking everyone. During a test of punching power, he smashes the testing machine. During a defense test, he stands still and lets Tashigi slash at him for three days and three nights, until her blade is completely blunted. When he needs to replenish his energy, he eats the Navy cafeteria out of house and home... Garp: This kid's stronger than me! Luffy: Lin En can eat even more than I can. Is that the secret to his strength? Robin: I like how strong you are! Nami: Help me! Kaido: At last, someone I can trade blows with! Wait, you... The Five Elders: This guy is practically a human sea king! Celestial Dragon: Don't come any closer!