Dress up as a Down-And-Out Father-In-Law, Pursue Love and Become a Grown-Up Princess Again

Time travel + rebirth + farming Gu Yan, a modern cow horse, wakes up and travels back to the Daqian Dynasty, where he becomes the unfavored young prince of Dingguo. The eldest princess who originally loved him changed her heart after she was reborn. Gu Yan (the model brother), who wanted to be peaceful, could only start the road to pursue the eldest princess.