Shadow and sonic have been rivals for years, they always end up figuring a lot. Shadow always started it first. Shadows is 18 years old and he lives alone at the edge of green hill. Sonic lives in the middle of green hill with all his friends. But recently they both got feelings for each other so they slowly stopped fighting and mostly hung out. Shadow still would lash out and attach sonic. But they quickly dissolved that usually and then just talked and had fun together.