Be Bold! Who Spread the Rumors That We Are Not Siblings?

[Note: Family orientation, there is no CP if there is an emotional route] [Dare to love, dare to hate, the hard-tongued and soft-hearted lady × Bingxue is smart and protects his sister, and is eager to protect his sister] (Shen Nian'an and Shen Xingxu) In the hustle and bustle of Kyoto, in the mansion of Shen, the doctor of the Ministry of War, the brother and sister Shen Xingxu and Shen Nian'an are like two extremes, but this is not the case. Shen Xingxu: "She is my sister. If she doesn't get better, it won't be your turn to judge her!" Shen Nian'an: "So what, princess? I have eyes but my arrows don't have eyes. If you have to use these dirty tricks, then go talk to my arrows!" Lin Zhiyi: "My daughter, the Minister of Household Affairs, said that she will protect Shen Nian'an, so she will definitely protect her." Wang Zhenmeng: "I can't tell whether she is true or not..." Feng Qianmo: "Sister Shen, it's really not as good as the rumors." Shangguan He: "One day without seeing you is like three autumns apart, and four days without seeing you is like twelve autumns apart?" As he grows older, the family encounters changes, the situation in the court becomes turbulent, and the Shen family is involved in political turmoil. Was it the distortion of human nature or the loss of morals that made his biological brother do such a cruel thing to his sister? Where should Shen Xingxu go in the dealings with the court and the choices of his family? Faced with his brother who he hated so much in the past, should Shen Nian'an fight with him or join forces with outsiders? Is the relationship between brother and sister as harmonious on the surface or...