Legal analysis: as the case may be. Under normal circumstances, it is necessary to bear joint and several repayment responsibilities. The guarantee methods include general guarantee and joint liability guarantee. If it is a general guarantee, the creditor can claim repayment from the guarantor only if the borrower can't repay it after legal procedures. In the case of joint guarantee, as long as the repayment period expires, the creditor may require the debtor to repay the loan or the guarantor to repay the loan at the same time.

Legal basis: Article 686 of People's Republic of China (PRC) Civil Code includes general guarantee and joint liability guarantee. If the parties have not agreed on the way of guarantee or the agreement is unclear in the guarantee contract, they shall bear the guarantee liability according to the general guarantee.