1. All appeals filed by the plaintiffs are dismissed.

2. The costs of appeal are assessed against the Plaintiffs.

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

1. The court's explanation of this case is the same as the reasoning of the judgment of the court of first instance, except for the addition of the following matters to the judgment of the court of first instance. Thus, it is accepted in accordance with Article 8 (2) of the Administrative Litigation Act and Article 420 of the Civil Procedure Act.

Under Chapter 5 of the judgment of the first instance court, the following is added to the following. (The plaintiff's ground that the change of the status of stay for the plaintiffs should be permitted is that the plaintiff's status of stay for 11 (D-2) in the status of stay for foreigners in Korea (D-2) attached Table 1 of the Enforcement Decree of the Immigration Control Act constitutes "a person who intends to undergo regular course education or to conduct specific research at an educational institution higher than junior colleges or academic research institute." However, the above requirement of stay for study (D-2) does not relate to cases where entry into the Republic of Korea is short-term visit (C-3) or entry into the Republic of Korea and then changes the status of stay after entry into the Republic of Korea. (D-2) under Part 7 (2) of the judgment of the first instance court, the plaintiffs did not request the "standard admission Permit" to be required to obtain a visa required to obtain a visa for study (D-2) from the Jeju Embassy Embassy, and the plaintiff's ground that it can be issued a visa for entry into the Republic of Mongolia-1 (D-2).