1. The plaintiff's appeal is dismissed.

2. The costs of appeal, including the part arising from the supplementary participation, are all assessed against the Plaintiff.

1. The grounds for the Plaintiff’s assertion in the trial of the first instance, citing the judgment, are not significantly different from the contents of the Plaintiff’s assertion in the first instance trial, and the evidence submitted in the first instance and the first instance trial are examined in full view of the purport of the entire pleadings, and the fact-finding and the judgment of the first instance court that the Plaintiff agreed with the Intervenor on March 4, 2014 to terminate the labor contract as of March 31, 2014 are deemed justifiable.

Therefore, this court's reasoning is the same as the reasoning of the judgment of the court of first instance. Thus, this court's reasoning is cited in accordance with Article 8 (2) of the Administrative Litigation Act and Article 420 of the Civil Procedure Act.

2. In conclusion, the judgment of the court of first instance is just and without merit, and it is so decided as per Disposition by the assent of all participating Justices.