Ai-Oon和Aob-Oom是生活轨迹完全不同的双胞胎姐妹。婚礼当天Oom偷偷把姐姐Ai拉到一旁,请求她能假扮自己和前任May彻底分手。婚后Oom却和新婚丈夫出了车祸,陷入昏迷状态。与此同时,Ai来到May家打算假扮妹妹分手,却意外的发现May是一个盲人。Ai可怜May是个盲人,她决定继续假扮妹妹维持与May的恋人关系。当Oom从昏迷中醒来时,Ai是否会像银河系中的冥王星一样被May遗忘呢? 当阿珀的任务是记录男孩组合火星解散前的最后一场演唱会时,他无意中成为了领导者Thame最亲密的知己。Thame即将在韩国首次亮相,将乐队的其他成员抛在身后。When Po is tasked with documenting boy group Mars' final concert before their disbandment, he inadvertently becomes the closest confidant of leader Thame. Thame's about to make his debut in South Korea, leaving the rest of the group behind.