1. The plaintiff's claim is dismissed.

2. The costs of lawsuit shall be borne by the Plaintiff.

The Plaintiff asserted that the Plaintiff should return to the Plaintiff the cancellation fee of the Plaintiff’s mutual aid agreement, as it treated the Plaintiff as a substitute amount, without paying part of the cancellation fee of the Plaintiff’s mutual aid agreement, and received unjust enrichment from the Plaintiff without any legal ground.

However, the evidence submitted by the plaintiff alone is insufficient to recognize that the defendant arbitrarily cancelled the plaintiff's mutual aid contract and conducted alternative treatment against the plaintiff's will in part, and there is no other evidence to acknowledge it.

Therefore, the plaintiff's claim shall not be accepted and it is so decided as per Disposition.