Alice and Ben are good friends who have known each other since college. The two lonely people received 10 wedding invitations in total when they were 30 years old, so they decided to accompany each other to every wedding so that each other would not be lonely at the weddings of couples. However, fate played tricks on them, and they gradually got to know each other at weddings one after another. One was a heartbroken person who had just broken up with her ex-boyfriend, and the other was a lonely soul who was looking for love but could not find true love. Where will fate take them?