It's actually a great way to go about making an alternative universe or life for a fanfiction. In my fanfiction Yongbae's Song, I made Taeyang go to military service and he met the fangirl Jamie who later became a trainee in the made up GYE GY entertainment, see what I did there?

There is an inherent need for them to do mandatory military training in thei country since there are impending and looming security issues between the two Koreas.

Honestly I am worried not just of the idols who are going into the service but all the guys that do go into the army or any arm of the military. These are very dangerous times.

So for all the fan girls out there, just keep your oppas in your prayers. They are going to need it, for all intensive purposes.