A fantasy film in which the world is coming to an end due to North Korea's sudden announcement of a nuclear explosion, and an ordinary office worker meets five women while planning to live his last day without regret, and finds his life as he is caught up in an unexpected extreme situation.

The story of Princess Pyeonggang who was born as a princess but raised to be a soldier for Goguryeo. She dreams to be the first female Taewang of Gorguryeo but is confused about the new feelings experienced after meeting On Dal.

Hoping to make a comeback after a bad scandal, an actress agrees to research a new role by taking a job as a secretary for a prickly attorney.