该剧讲述对彼此充满误会的亲家男女抚养侄子"宇宙"一起成长的故事。
故事从大学生四叶枫开始展开,他是一个完全没有恋爱经验的人,却被校内人人憧憬的学长鸿上沙罗告知“自己是来自平行世界的存在,并且他们在那个世界中是恋人关系”。随着情节的发展,二人面对各自隐藏的秘密和内心的挣扎,逐渐揭示他们对爱情的选择。
当犯罪学家Tankhun声称自己是他的初恋时,记者Botpleng开始怀疑自己的记忆。在好奇心和不确定性的驱使下,Botpleng着手揭开真相。是他的记忆有问题,还是他的过去被什么东西——或者什么人——扭曲了?Botpleng, a reporter, begins to doubt his own memories when Tankhun, a criminologist, claims to be his first love. Driven by curiosity and uncertainty, Botpleng sets out to uncover the truth. Are his memories faulty, or has his past been twisted by something—or someone?