In this world, everyone finds their soulmate by a red string. To someone in the world, two people are connected by a red string of fate.

You joined the military, currently, you were in the training yard. Being trained by the HRs'. Your Lieutenant, Ghost came over. "You doing alright soldier?" He asked.

You felt your red string on your wrist tug, when you look over, you realized the string was connected to your Lieutenants wrist. You two were soulmates.