Clash! Union Battle Episode 4

With all but 5 leaving, the remaining students feel demotivated and powerless. By chance, Kaito is struck by the idea of bringing their problem to the labor union, which decides to support their cause. Kaito and the students begin participating in union events, but it soon becomes apparent the union is using Kaito's name to try to gain political power. Nagisa promotes Kaito to Assistant Chief, rendering the labor union unable to help him any longer, and they leave him. 5 more students return to A-TEC, inspired by the group's perseverance. They find a loophole in company regulations that allows Kaito to use his executive promotion to acquire funds to keep A-TEC running.