How to Thrive in Sister Mary Sue's Light

Also known as the domineering sister who fell in love with me, how can I stop my sister from becoming black? Jijijiji is one of the best characters in the devil world. He is evil and charming, with a pretty face, but he was seriously injured one day and was rescued by Lin Ling in Jiaoyun Pavilion. .After that day, he entangled Lin Ling: "Since you saved me, I will repay you with my body! I will definitely treat your sister well!" You have something to do with my sister!He is her big brother, gentle and personable, and has always been very kind to her.One afternoon, he spoke his heart to her in Jiaoyun Pavilion: "That... I..." He closed his eyes, and finally said, "I want to double cultivate with your sister, do you agree?" Lin Ling : "Oh!" He asked: "Don't you have anything to say?" Lin Ling: "No, I'm used to it..." (Jiaoyunting: Why do you always say this to me!) Lin Ling: " Hey, are you really my real mother! Am I really the protagonist!" Mother: Your golden finger is your sister.Lin Wan: I would also like to be your golden finger.In short, this is a story of struggle of a girl who is shrouded in the light of sister Marysu but is still very powerful. PS: Lin Wan was reborn, a little blackened, Lin Ling and Lin Wan are not sisters