Synopsis：After a sudden accident leaves Suhyeon with amnesia, two irresistibly charming men—Taebin and Gonghyuk—show up, both claiming to be her boyfriend. To uncover the truth, Suhyeon starts a “perfectly reasonable” double-dating experiment, seeing both of them while trying to piece together her past. But the closer she gets, the more suspicious they both seem. Who is her real lover? What hidden betrayals lie in the memories she lost? And where will this extraordinary journey of dating two “boyfriends” at once finally lead her?