Mabeopsonyeo 78-se Ma Bok-Hui

At the end of her tumultuous life, Bok-Hui, a grandmother, receives a terminal diagnosis. She receives an offer: if she becomes a magical girl, she can extend her granddaughter's life until she becomes an adult. "A magical girl...? That means my granddaughter can live longer...? I'll do it!" Will Bok-Hui be able to protect the East Village from the mysterious man, "Dok-Su," and the villains he has corrupted? Discovering her true calling at the end of her life! The story of a 78-year-old grandmother's rejuvenated journey to become a magical girl!(Source: Kakaopage, translated)