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After their parents' sudden death, Gyeonwoo takes on the responsibility of being the guardian for his younger sister. She holds a surprising secret—she is the Demon Lord with dreams of world domination! Despite this revelation, Gyeonwoo is unwavering in his dedication to raising her with love and guidance. Join them as they navigate everyday life while dealing with these extraordinary circumstances.
Original Webtoon: Naver Webtoon, Naver Series
Official Translation: English