1. The plaintiff's appeal is dismissed.

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

The purport of the claim and appeal is the purport of the appeal.

1. Basic facts

A. On October 21, 2016, the Plaintiff’s mother entered into a supply contract with the Defendant to purchase D apartment units E (hereinafter “instant apartment units”) (hereinafter “instant supply contract”) and deposited down payment of KRW 24,520,000 on the same day.

The contents of the instant supply contract relating to the instant case are as follows.

▣ 재산의 표시 : 이 사건 아파트 E호 ▣ 입주예정일 : 2018년 11월(공급에 따라 다소 변경될 경우 추후 개별 통보키로 함) 제1조(공급대금 및 납부방법) ① 매도인은 위 표시 재산을 아래 방법으로 공급하고 매수인은 해당 공급대금을 약정기일 내에 매도인이 제3자에서 지정한 은행계좌에 지급하여야 한다.

(2) The sum of the deposit interest rate of 12,260,000 (5%) at the time of separate contract date and the first (10%) intermediate payment of 12,260,000 intermediate payment (10%) at the time of November 15, 2016 shall be added to the 15. 24,520,002 (10%) interest rate of 20% on May 15, 2017; 20,520,003 (10%) interest rate of late payment (10%) at the end of 20,520,004 (10%) interest rate of 20,000 household loans at the time of late payment; 3.0,000 interest rate of late payment (24,520,000%) at the expiration of 20,520,0000 (10%) interest rate of late payment (24,205,2015) at the expiration of the previous year.

(4) Where a purchaser pays an intermediate payment before the agreed date, a seller shall pay it by 3% per annum for the advance payment.