Lu Jian Guo is the deceased eldest son of Old Master Lu and Lu Old Lady, and the father of Lu Huaijing, Lu Huai Ren, and their siblings. He died in the past, and his death was the source of conflict between Wang Dani and his parents. Old Master Lu and Lu Old Lady had said harsh words when he died, refusing to leave him any pension and hoping to avoid the burden of his children. Wang Dani raised the children alone after his death.