Read manhwa A Strange But Effective Villainess Life / 이상한데 효과적인 악녀 생활

Kiana Frellai, the youngest granddaughter of the prestigious Frellai duchy and a genius magic engineering Ph.D., spends seven years secluded in research after fleeing her chaotic family. Suddenly dragged back to the empire, she learns her grandfather is accused of treason. Facing execution, her cousin Melissa’s divine power rewinds time. Determined to prevent her family’s downfall, Kiana devises a plan, blending her genius strategies to rewrite the future. Armed with coffee and brains, she embarks on a project to save her family in the most unconventional way!