Synopsis：Bae Seoyoon, the heiress of the Baesung Group, begins to suspect that her boyfriend of ten years, Yoo Junghyuk, is having an affair. On their 10th anniversary, she suggests they play a couple’s question game called “Of Course,” hoping to force the truth into the open. Remembering everything they’ve been through, she resolves that if Yoo Junghyuk honestly confesses to his cheating, she might still try to forgive him and hold on to their relationship.