[If exchange and return are available] - It can be exchanged and returned due to the customer's change of heart, but the product must be recovered without opening or damaging the packaging, and the round-trip shipping fee of KRW 5,000 must be paid [If exchange and return are not possible] - When the value of the goods, etc., has decreased significantly over time to the extent that it is difficult to resell them. It is not possible to exchange or return the product.