Tang Dynasty: the Prince Becomes the Second Generation and Fights to the Death with the Eldest Grandson's Family

I am "Yingwu" Li Ke, the son of Emperor Taizong Li Shimin of the Tang Dynasty. I am a descendant of the three wealthy families of Yang Sui, Li Tang and Dugu. I was involved in the struggle for the crown prince, and my family was ruined due to the frame-up of Changsun Wuji. Resentment soared to the sky, and heaven reincarnated me. I was reborn as Fang Xuanling's youngest son, Fang Yiyi, a person who has no sense of existence in the history books. Repaying grievances with straightness, repaying kindness with kindness, a war without gunpowder begins, to cut off the eldest grandson and protect Li Tang. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.