Choi Ban Do and Ma Jin Joo are both 38-years-old and a married couple. Choi Ban Do has been burdened with being the breadwinner and Ma Jin Joo is a housewife with low self-esteem. Even though they loved each other when they married, they now hate each other. They both regret marrying at such a young age. The couple travel through time and find themselves as 20-year-old university students, when they met for the first time. 爱的语法课。Let me in your mind---告白给我心里的你（The end）。人生没有第二次机会啊。最大的泪点是亲情，我可能真的老了。。。。关于我爱你。如果爱太荒凉，我陪你梦一场。结局怎样都不算意外。走心的剧，感谢在浮躁的时代能看到这样的剧。。人生啊。短程旅途不快乐 终映总是不舍…。 此剧讲述描述一对互看不顺眼的40岁同龄夫妻在如同战争般的生活中，突然重新回到20岁让他们开始重新燃起爱的火花，开始过起当年没有经历过的青春生活的故事。
