Invent a Memory Eraser at the Beginning to Prevent the Demon-Slaying Order

A scholar who traveled through time and became O'Hara, activated the incredible scientist system, invented the memory eraser at the beginning, stopped the demon-slaying order, saved O'Hara, and kidnapped little Robin along the way. Since then, the Navy's scientific research force has gained a super scientist. Vegapunk is said to be five hundred years beyond humanity, while Rogue is said to be ten thousand years beyond the world. With the emergence of a series of black technologies such as Devil Fruit Radar, New America Shield, Free Door, Guaranteed Beans, Super Easy-to-Use Capsules, Flying Sickle Flip-flops, etc., The entire world has suddenly changed. … When the final battle came, Im looked at the dragon-like humanoid forms of the New Marines, with Zanpakutos in their left hands, Captain America's shield in their right hands, flying sickle flip-flops at their feet, and the entire Mariejoia was covered with detonating symbols. He fell into a deep silence! "Can you surrender and lose half?" .... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.