Thinking that she can never see her boyfriend again, Moe's despair summons a spunky soul collecting apprentice spirit of death named Risky. Risky urges Moe to depart the mortal realm, leaving behind her precious soul until a glimmer of hope and a brief smile on Moe's face causes Risky to transform into Safety, a polite and proper apprentice angel who just happens to share a body with Risky. Accompanied by this feisty apprentice devil/delicate apprentice angel, Moe's life suddenly becomes a humorous and touching trial as she struggles to balance her love life with protecting her schoolmates from Risky's devilish clutches.