One Leaf, All Souls

When the immortal Ye Lingyin ascends and undergoes tribulation, she accidentally transmigrates into the body of Ye Xunyin, the sixth-generation great-grandson who died at eighteen. Returning to the Ye family, Lingyin witnesses its gradual decline, ungrateful descendants, and the aging head of the family, who was poisoned and is now powerless to manage the family business. She decides to stay in the mortal realm to rebuild the family and rectify the bloodline herself.