A. On May 19, 2010, the Plaintiff concluded the following employment contract with the Defendant Company and joined the Defendant Company as a transit bus driver.

As the defendant is applied to a used bus driver, he/she has enacted and operated the "JA" which contains the contents of his/her employment, service, working hours and rest, leave, wages, welfare, leave of absence, retirement, dismissal, etc.

The types of work of the plaintiff shall be a middle-class driver (operator) and work shall be a middle-term bus. The plaintiff's pay shall be 4,110 won, and other various allowances shall be governed by the wage rules. Working conditions, such as the plaintiff's weekly leave, annual leave, wage, etc., shall correspond to the mid-term employment rules (paragraphs 2 through 6).

B. The Defendant classified a large bus driver into a large bus driver and employs a driver. The Defendant paid wages to a large bus driver according to each employment contract and employment rules, and paid wages to a large bus driver as prescribed by the collective agreement, wage agreement, etc.

C. The level of urgency determined by the collective agreement, etc. of a large bus driver is as shown in the annexed Form “emergency”.

Under the collective agreement, the defendant company pays basic pay, various allowances (long-term work allowance, night work allowance, holiday work allowance, weekly leave allowance, day-to-day compensation allowance, accident-free allowance, transportation allowance, low-time leave allowance, and bonus). The basic pay is calculated on the basis of the urgency, and some allowances are calculated on the basis of the basic pay, and some allowances are paid to the large bus driver, and they are not paid to the large bus driver.

Trade unions consisting of employees belonging to the defendant are organized.

The main contents of the collective agreement concluded between the defendant and the above trade union are as follows:

(1) “The scope of a partner” of a collective agreement before amendment (hereinafter “former collective agreement”) on October 2, 2013.