Dying Cultivator's OP System

Transmigrator Leon Lane has a wasted physique. On the brink of death, he awakens the Household Joy System. By protecting his family and awakening his bloodline, he obtains heaven-defying rewards. He defeats powerful enemies, subdues allies, and uncovers ancient inheritance secrets. When demons descend and the world falls into peril, Leon Lane swears to protect the Desolate Martial Continent and build the strongest family!