在医院里，每位病人及每件事都至关重要，身为医生同时也是平凡人的五人帮，将在此面对人生的起起落落。
三位闺蜜即将迈入40 岁的门槛，她们相互扶持，风雨同舟，共同面对生活、爱和失去。
When high school teacher Na Aejoon shows up for work on an ordinary day, he never expects to bump into his favorite celebrity in the hallway. But when his school becomes a filming location for a show starring Choi Siyeol, his bias from the idol group A-One, that's exactly what happens! If that's not enough to give a fanboy a heart attack, Siyeol takes an interest in Aejoon and asks him to join the show as his "co-teacher." Desperate to keep his fan life a secret, Aejoon is forced to put his acting skills to the test, and not just on camera. But as he spends more and more time with Siyeol, the deception becomes harder to keep up. Not to mention, he might not be the only one keeping secrets…
该剧是一部穿越剧，讲述原本是射箭国家队选手的快递员郑禄，和朝鲜时代的林巪（音同：巨）正，两个男人相遇后的真挚友谊和成长故事。 姜至奂饰演郑禄，他是原本是射箭选手，现在是一个快递员。他和令他很自豪的妹妹以及时隔8年重逢的初恋，这两个他人生中的女人一起穿越到朝鲜明宗时代，生命不断受到威胁。 景收真饰演李海盾，她是应急医学科的医生。她是富贵人家的独生女，在韩国最好的大学医院应急医学科当了三年实习医生，气质优雅有品位但有点高傲。
