So Tonight is Mewni royal ball where Adrianna hasn't told her friends about her dark emo boyfriend Shadow the hedgehog.Where they go on to help Cinderella would Adrianna break up with Shadow find out.
Shadow has a crush on Sonic, but when Sonic gets suspicious Shadow tells him he has a crush on one of their classmates. Sonic offers to help and Shadow accepts. Now Shadow has to try really hard to keep his little crush a secret. But what happens when his little lie comes true? From then on it all goes downhill.