After Dark Gaia was sealed away, some of it's essence still trickles through and manifests in the world. Most minions that break through do not last long though for their most basic in destructive instinct and low IQ causes them to find a quick end when trying to raise chaos in such a weak state.
A new kind of minion has leaked through the cracks. One that doesn't rely on chaos and destruction to gather negative energy from the populous but rather manipulation of ones heart and desires.
Variable is a minion of dark gaia that has the ability to shapeshift into those she has captured. When emerging, she was just a lump of unformed dark energy until she encountered Amy. With Amy being her first capture, Variable's base form takes on a twisted version of Amy's desires and insecurities about herself. With the pink hedgehog as her starting victim, "Rosie" uses her abilities to mentally torture and prod the pink hedgehog by getting close to all of Amy's friends, mainly focusing on Sonic and making Amy watch while Rosie does what the pink hedgehog could never do. Seduce Sonic the Hedgehog and make him Rosie's to harness the the raw negative emotion from Amy's despair.
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Lol after dA admins and whiny sonic fans who don't want Amy ever getting older ever because "Muh Canon!" Had to get Rosie finally drawn up and designed.
This character started on a troll account I made about 2 years ago to mess with the sonic fans who wanna get into the pants of an Amy RPer. She started off as just a busty amy that messed with people but eventually a writer showed up on the page and together we started actually fleshing her story out more and even have some literature in teh works. There is another person who helped develop the personality of this character but she has been MIA for over a year as that account was a joint effort
Anyways for the sake of dodging the "Canon" fire (lol) anytime i do an aged up canon sonic character, it will be a bit tweeked version that will have some inconsistencies to the original canon design
The Writer for Rosie is around but im not sure if he want's to have the attention just yet :P
So let's make Rosie the number one fan replacement for Amy 8D!