Jieun is smart and witty, but she's got a penchant for running late. Luckily, she's got a few tricks up her sleeve, like a quick shortcut to help her get to work on time.

Jisoo, on the other hand, is trying to find his first corporate job while nursing old wounds. Everyday's the same boring routine, to the library and back home where he lives alone. At least, until one day when he takes a wrong turn down an alley and discovers Jieun... stuck in a wall.