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What? My lazy, coquettish and evil elder sister is not related to me by blood?What? She wants to be a big star. Luckily, I have an omnipotent system, so I can help her clear all obstacles!What? Mom and dad asked me to help her with her singleness. I\'m still single! Why don\'t you care about me?System: I think you\'re a good match. I\'ll set you up.No, I refuse. I\'m miserable to be her younger brother! I don\'t want to be my own brother-in-law!Original Webtoon:AC.QQ, BiliBiliOfficial English:WebNovel, HoneyToon