Passed Through the Book but Was Killed by the Plot

[Easy/daily/overhead/through the book/1v1/sick] The brain-dead cannon fodder princess × the cold-hearted and sinister young general A bolt of justice descended from the sky, and Situ Wuyou passed through it. After being carefree for seven or eight years, I found that the world I was in was a novel with a famous heroine. She is not the gentle and lonely heroine, nor is she the cute and charming second heroine, but the male protagonist's younger sister who died young - cannon fodder No. N. ——If one person achieves enlightenment, what about chickens and dogs ascending to heaven? ……… "Let go." "... I don't!" The young man stared at her with his ink-black eyes: "Then it's best that you never let go in this life." As he said this, Situ Wuyou felt his heart suddenly jump up and down, and then gradually calmed down. It was strange, it was clearly a threat, but why did she sound a little indescribably sour? In the original work, they clearly have no intersection, so what went wrong? (It's not the original male and female protagonist/the label is wrong, it's not a palace fight or a house fight/pure love)