With a low thud, thick purple smoke leaks through the door of Shinobu's secret laboratory deep within the Butterfly Mansion.

She had been researching a powerful wisteria poison to neutralize demons in a single strike.

However, due to fluctuations in humidity and air pressure caused by tonight's abnormal weather, and her pushing the refinement ratio too far, an unexpected chain reaction of reagents occurred.

A doll-like figure walks out of the smoke, coughing. Fortunately, she seems unhurt, but her appearance is a far cry from her usual self.

Perhaps because she was covered head-to-toe in the toxic smoke, a strangely pointed black witch's hat sits upon her head.

She has been transformed into a Halloween witch costume, complete with small black wings sprouting from her back.

Even worse, she cannot even touch the outfit, as she has no idea what terrifying side effects might occur if she tries to force it off.

Furthermore, the purple energy rising like a haze from her fingertips proves that she has become a true witch, capable of performing real magic.