负债累累的年轻男子接下了一家神秘机构提供的高薪兼职工作，却发现为了赚更多钱干的这份差事竟变成了一场噩梦。

Dong-chun, an elementary school student overwhelmed with seven afterschool learning academies, stumbles upon a mysterious bottle of rice wine during a school retreat. As the rice wine ferments and emits strange sounds like Morse code, Dong-chun sets out to unravel its identity and discovers the secrets of the world and the reasons behind her current way of life.