A Retired Magical Girl's Villain-Rearing Plan

Retired magical girl Lucie wants to live an ordinary life as an office drone under an assumed name. But when her magical girl little sister suddenly shows up, she throws Lucie into a panic, and one piece of bad luck after another comes her way. She even gets trampled underfoot by her arrogant little sister. "Don't forget, if I wanted to, I could do it anytime..." Warm breath and soft whispers tease Lucie's ear, and her face turns beet red with fury. You brat, just you wait! Even if I have to do something as wicked as a witch, I'll make you pay!