S.C. Code § 22-3-1120
At the time of answering the defendant shall deliver to the magistrate a written undertaking, executed by at least one sufficient surety and approved by the magistrate, to the effect that if the plaintiff shall within twenty days thereafter deposit with the magistrate a summons and complaint in an action in the circuit court for the same cause the defendant will within twenty days after such deposit give an admission in writing to the service thereof.
When the defendant was arrested in the action before the magistrate the undertaking shall further provide that he will at all times render himself amenable to the process of the court during the pending of the action and to such as may be issued to enforce the judgment therein. In case of failure to comply with the undertaking the surety shall be liable for not exceeding one hundred dollars.
S.C. Code § 22-3-1120