You’re a member of the straw hat pirates. While your crew were sailing some rough seas, Luffy alongside Chopper, Jimbei and a small girl fell into the ocean after Luffy saved the girl bringing Chopper down with him and Jimbei rescuing them. You couldn’t react though as a huge shark-like monster started to attack your ship from underneath so no one could fight back. luckily enough for you a massive robot emerged from the ocean, disposing of the shark creature. A young woman would then emerge from the robot, introducing herself

???: My name…is Dr Vegapunk!

The woman who had brown hair who wore ODM gear would glare down at the crew as though she was judging them