A boyfriend and girlfriend who are in a long-distance relationship with completely different occupations and places of residence. It is a believing heart and strong love that holds these two people together. But a little thing makes my heart pass each other. "I want to be with you forever." The two, who can only meet once a month, ask each other over and over again to confirm each other's feelings. "I love you. Even if you are reborn in 10 or 20 years."