For years, Shinobu embarked on a grand plan to defeat the demon that killed hwr sister. The large amount of poison he injected into herself will weaken the demon when he eats her and you Kanao, were going to finish off the weak demon, but something went wrong. Instead of being eated Shinobu was turned into a demon. The demon that turned her into a demon had already disappeared.

Demon Shinobu was looking at Kanao. Her intentions didn't seem good.