Pirates Binds Robin at the Beginning and Awakens the Divine Gun System

[One Piece], [Follow the Boat], [Single Female Protagonist], [Robin], [Make Up for Regrets], [Decisive Killing], [IQ Online], [DNF], [Gunner] Lin Kai traveled to the dangerous world of One Piece and became an unlucky man floating at sea waiting for death. Just before being swallowed by the Neptune class, the [DNF Sharpshooter System] was activated! Start with a revolver and unlimited bullet refills! While others relied on domineering power, he used quantum bombs; while others relied on physical skills, he drove his Gundam to crush them! Since then, there has been a gunman in the sea who does not eat Devil Fruit but is more terrifying than the natural type. His core ability is to bring the gun skills in the game into reality: [Gatling Gun] to clear out miscellaneous soldiers, [Laser Cannon] to blast warships, and [Satellite Ray] to destroy the entire map! It can also consume materials to create "regular bullets" with the effect of sea floor stone! In order to make up for the regrets of his previous life, and to protect the woman who had carried the whole world on her back - Nico Robin, he resolutely boarded the Straw Hat crew's ship. When the war came and everyone despaired of Ace's fate, Lin Kai set up a sniper rifle thousands of miles away, aiming at the order of the entire world! But he didn't know that the real purpose of this system from another world was to cultivate a final weapon that could be the enemy of "God"…