2. Article 208 (3) 1 of the Civil Procedure Act of the applicable provisions of Acts (Judgment without holding any pleadings due to the submission of a written reply);

3. The part of the Defendant’s obligation to return unjust enrichment is a kind of obligation to which the deadline has not been stipulated, and thus, the Defendant is liable for the delay of payment from the date following the date on which the obligation to return unjust enrichment was requested. Therefore, the part of the Defendant’s obligation to claim for delayed payment is dismissed from the date on which the duplicate of the complaint was served to the following day. Moreover, in accordance with the provisions on statutory interest rate under the main sentence of Article 3(1) of the Act on Special Cases Concerning Encouragement, etc. of Legal Proceedings amended on September 25, 2015, the portion exceeding 15% per annum from