The manga follows the story of hedgehog boy, Nicky Parlouzer, who has the extraordinary ability to transform himself into Sonic the Hedgehog. Alongside his trusty companion, Miles "Tails" Prower, he fights against the sinister Dr. Eggman. Nicky navigates his relationships with his dear friends Little John, girlfriend Amy (the original version of Amy Rose), and Charmy (the original version Charmy Bee) while residing in the "real world". The young protagonist also encounters bullies, such as the lizard bully and his younger sibling and animal companion, Anton Beruuka, Matt, and Mad, respectively. Nicky's family consists of his loving mother Brenda, father Paulie, and younger sister Anita.