A little fairy dressed as a female supporting sister

When Gu Jingruan woke up, she found that she was wearing a book, or she was wearing the dog blood text that she had just thrown the moonstone.The beautiful elder sister who was as beautiful as the breeze and the moon became the female supporting role, the best friend stabbed a knife in the back, the scumbag changed his mind, and changed from a high-ranking goddess to the laughing point of the whole school... And she became the female supporting role's younger sister.She clenched her fists tightly and swore that from now on, her sister is her light, her sugar, and her survival power!She wants to protect the best sister in the world! **One night, Gu Jingruan was frightened and screamed by an unknown creature in the corner, and hurriedly knocked on the opposite door. Xie Zhiyi was wearing a suspender silk nightgown, leaning against the wall with slightly wet hair and looking at her lazily, "Ruanruan? "Gu Jingruan blushed slightly: "Sister, sister...I, I..." Xie Zhiyi chuckled knowingly: "Yes." Gu Jingruan: "???" Xie Zhiyi: "Come in, and close the door." Gu Jingruan: "???" What about the cool and cool character set?Xie Zhiyi: "Since you're here, let's start." Gu Jingruan: "???" Xie Zhiyi: "I can only sleep tonight after finishing two sets of math simulation papers." Gu Jingruan: "Sister..." Demining: There is no blood relationship and no household registration relationship, and both of them know that the older sister will also return to their home later. 1v1, HE.One-sentence introduction: Protecting the best girl in the world Content tags: Female supporting role sweet text wears books on campus┃ Search keywords: Protagonist: Gu Jingruan, Xie Zhiyi┃ Supporting role: "Coax her to sleep" for collection