After she began training, two boys showed up and spied on her. Viper still punching the trees and breaking them with her sword made of water said, "boys I know you are there. What do you want?" The boys about a mile away were startled when she spoke to them. They thought in both their minds, how did she know we were here when she didn't look over even once?
Ace the older of the two said, "who are you?!" Viper replied, "why should I tell you?" Luffy then asked, "well can you tell me your name then? I wanna be friends. Plus you're super strong for a girl." Viper replied, "very well then, I am Princess Chaos D. Viper. I'm from the devigod clan known as the Chaos clan. My clan was wiped out by Gods. I'm a lone survivor.
Luffy and ace looked at each other then said in unison, " the Chaos clan?!" Ace said, "prove it! Chaos clan members are legendary and can use devil and god like abilities! Show some to us and we'll believe you." Viper sighed. "My powers are not for show you know but I'll show you since we'll be living together." Ace said, "wait what?!" But was cut off by her back sprouting wings and a tail. She grew horns on her head and claws. Ace was more than pleased.
Viper said, "well? Now do you believe me?" Ace and Luffy said, "yeah..." Luffy asked, "can you carry people and fly?" Ace asked, "can you really travel dimensions?" Viper responded, "yes and yes. Also I'm a princess of the most chaotic clan I have access to anyplace and anything." Luffy and ace asked, "can you fly us back to the bandits cabin?" Viper replied, "teleporting all three of us there would be easier." The vanished and appeared at the front door of the cabin.