Seven enlistments. Infinite service. Zero discharge.

Kim Jae-hwan, a lowly private, has been trapped in a never-ending military time loop, forced to relive his conscription over and over again. No matter what he does, he always ends up back at square one — Private, Day 1.

The only clue to breaking the cycle? A mysterious line in his military diary: "It was truly the perfect military life."

Now, in his 7th round of enlistment, Jae-hwan is ready to do whatever it takes— follow every order, befriend every superior, survive every absurdity— to finally write those cursed words… and escape.

But in a place where logic is warped and sanity is optional, can one soldier truly find the perfect military life?