Traveling Through the Tang Dynasty, I Became Li Shimin's Brother-In-Law

Traveling through the late Sui Dynasty, I got a cheating love APP system that could only bind one woman, and the points rewards were evaluated based on status. I thought I was going to be alone, but I didn't expect great luck to come from heaven. Li Yuan's daughter and Li Shimin's sister, Li Xiuning, became seriously ill and looked like a ghost! For points, let alone a serious ghost, we will also go up to the real ghost. I just never thought... This evil aesthetic makes me laugh so hard!