Girls Frontline: the Strongest Lieutenant

I traveled to the Youth Frontline and became the commander's adjutant. It came with a plot system. You had to complete all the main plots before you could leave this hellish place. I followed the commander to participate in various battles, and almost lost every time. Two years later, the commander broke up with Jazz. I thought I had completed all the main plots and could leave this hellish place. I never expected that the commander would kidnap me before he left.