Characters: Sae-Roo (OC), Yeong Eun (OC), Kim Junsu, Mark Tuan, Bang Yongguk, CL

At the age of twenty-one, Sae Roo felt she had nothing else to live for, as she knows that both she and her husband of six months won't live long due to a terminal illness.

Though her husband is in a worse state than she, Sae Roo decided to do something extremely out of the ordinary.

Her country is in the midst of war, and because of this, people are in panic at the lack of soldiers to protect them.

Sae Roo, wanting to go out in a blaze of glory, does the taboo for her home, and decided to join the army forces undercover. This is her final chance to do something before it is her time. Will she make it?