1. Defendant A Co., Ltd. shall be against the Plaintiffs listed in the Plaintiffs’ list Nos. 1 through 44, and Defendant B Co., Ltd.

1. Basic facts

A. The Defendants are companies running urban bus transportation business. Of the list of “the date of entry, retirement, and claim amount,” the Plaintiffs respectively retired from Defendant B Co., Ltd. on September 30, 2013, and Plaintiff C and D respectively on October 31, 2013.

B. The main contents of the collective agreement and wage agreement are the labor relations between the Plaintiffs and the Defendants pursuant to the collective agreement and wage agreement concluded between the F organization G branch to which the Plaintiffs belong (hereinafter “trade union”) and the H business cooperative to which the Defendants belong (hereinafter “business cooperative”). The main contents of the collective agreement and wage agreement from 2010 to 2013 (hereinafter “each collective agreement and wage agreement of this case”) are as follows.

1) The working system and working hours per day shall be two educational programs per day; the shift working hours after A.M. and after E.M. shall be based on 14:30; the number of working days per month shall be 22 days per basic working day (20 days for February and 21 for leap year) and 24 days per extended working day (22 days for February and 23 days for leap year).

B) Work hours are 8 hours a day’s basic work day, 1 hours a week’s basic work day, 40 hours a week’s basic work day, 5 hours a week’s overtime work day, and 9 hours a day’s overtime work (one hour a week’s overtime work). Work hours are 2 hours a day’s overtime work day’s overtime work day’s overtime work day’s overtime work day’s overtime work day’s overtime work day’s overtime work day’s overtime work day’s overtime work day’s completion of operation pursuant to the dispatch table and departure from the company. (2) According to each collective agreement of this case, wages are stipulated in a separate wage agreement. Accordingly, the date and period of each of the instant wage agreements concluded between a trade union and an industrial cooperative from 2010 to 2013 are as follows.