The debt owed by the son shall be repaid by the son himself, and the parents do not need to repay it, unless the parents provide guarantee for the debt owed by the son or inherit the son's property.

Debt is a relative right, which is only legally binding on both parties of the creditor and the debtor. There is no legal provision that the father's debt must be repaid by the son or the son's debt must be repaid by the father.