In 1987, a bloody man jumps into a women's university dormitory in Seoul. Young-ro, a female university student who falls in love with him at first sight at a group blind date, takes care of him despite the strict surveillance and dangerous situation. However, Young-ro is shocked to learn his secret. Despite heartbreakingly watching over his first love Young-ro, Soo-ho has no choice but to move according to the command in order to save his teammates and to go back to the his home country where his sibling awaits. Young-ro rejects the will of her father and works hand in hand with Soo-ho to save her beloved man and her friends. What will happen to their fate?