I don't have sex with my sister

Shang Can transmigrated into the chief disciple of the Cultivation of Immortals sect, a young genius, high-spirited, she had a smooth life and never encountered any difficulties.Even her beautiful junior sister, who everyone said was cold-tempered and not easy to get close to, would only smile softly when she saw her, and call her senior sister docilely and obediently.She thought it would always be like this in the future, but fate is unpredictable.Many years later, Yun Yun was dressed in white clothes like a banished fairy, but her beautiful eyes lost her luster, and her calm and self-possessed voice trembled slightly, and said to her word by word: "Senior sister, either you stay or I go with you." .” Shang Can, who has become a demon cultivator, flickered, not daring to look at her.Shang Can used to like hearing Yun call her senior sister the most, and she wished to give her everything when she called her, even the stars in the sky were willing to pick it off for her.But now that time has passed, and hearing these two words again, even the heart-piercing pain has passed, leaving only a little numb pain.What her beloved junior sister wants most, Shang Can can't always give her. *Senior sister with a cynical and steady belt (attack) x Junior sister who is cold and taciturn and beautiful (shou) *Atypical fairy tale, regardless of realm (the kind where the force value is all determined by the author) *Only love each other and not kill each other* 1v1 (but the relationship will probably be confirmed later), he (but there will be abuse) *The author likes dog blood, don't spray if you don't like it ┃ Supporting role: