Sonic is a ninja last member of the 44th Graduation Class of the Ninja Village. He is a chill guy, confident in his abilities, spiteful and ruthless. He fights using deadly ninjutsu and classic ninja weapons. 
He has an effeminate curvy figure, white eyes with black sclera, black lines painted below the eyes, and white skin. He wears tight clothes and a red scarf. He turned into a monster because he ate a "Monster Cell". He's gay.