Haewon yearns to leave behind a lasting legacy in the world of botany by discovering a rare and unique flower, while Eunseong only wants to escape the contentious battle for ownership of his father's company in exchange for a simpler, less complicated lifestyle. In the midst of the vast Mongolian desert, a powerful and magnetic attraction ignites when their paths collide. However, their love story is anything but simple, particularly due to Haewon's terminal illness that she is determined to keep hidden for as long as possible to accomplish her aspirations. Despite this, Eunseong refuses to let her go and may have to return to his forsaken life if he wants to save her. As they both face death, what will fate impart on their future?