Robotnik Escape

After settling in Green Hills, Sonic and Y/N are ready for more freedom and making their mark as heroes, well mostly Sonic. Y/N just simply wanted a normal life to explore around the world he'd ever seen. Tom and Maddie agree to leave them home while they go on vacation. Tom counted on Y/N to keep an extra eye on his brother, which he agreed to. But, no sooner are they gone, when Dr. Robotnik returns, this time with two new partners, Knuckles and Sonya, whom Y/N had known since they were kids, in search for an emerald that has the power to both build and destroy civilizations. Sonic and Y/N teams up with their new friend/sidekick, Tails, and together they embark on a journey to find the emerald before it falls into the wrong hands.