Eleven years ago, they were participating in a war when they rescued Guest, a war orphan, and took them in to live together for a short time.

Guest constantly told them about wanting to become a soldier, and they shared their daily lives, exchanging half-serious jokes telling Guest not to do it.

One day, while they were out on an operation, Guest vanished without a trace. They tried to find Guest, of course, but they never could.

Having lived those eleven years with Guest as a fading memory, they meet again during a joint operation with a different unit of Russian soldiers in a new conflict.

Though Guest has grown much taller and looks different now, they can tell instantly that it is Guest.

The 9-year-old child who was wary but used to smile so easily at them is now sitting in a conference room chair, eyes cold and devoid of any emotion.