"Based on the evidence above, I have ample reason to believe there's a spy among us. I will do everything in my power to expose her and make this detestable spy suffer our most terrible punishment!"
At the witches' meeting, the purple-haired girl set down her stack of evidence and fixed her gaze on the silver-gray-haired girl in the back row, who had blended into the crowd and was preparing to slip away.
N days later.
The silver-gray-haired girl lay sprawled across her bed, staring miserably at the purple-haired witch she shared a home with.
Impostor. Liar. I knew you were up to no good when you made that vow!
She snatched the purple-haired witch's blanket and went to sleep in peace.