(Y/N) (L/N), or Sonic as he's nicknamed himself, is a hedgehog from another planet, who was forced into Remnant when he was attacked on his home planet. He's spent years in hiding, watching Ruby Rose, a human he's fallen in love with. However, when he accidentally causes a black-out, Sonic is hunted by Doctor Ivo "Eggman" Robotnik, and loses his rings. He seeks help from Ruby, and the two go on an adventure to retrieve Sonic's rings, and their feelings for one another begin to grow along the way.