Key owns a bakery in Seoul, but someone has stolen the keys! So as punishment, this person must work full time, and even over time to compensate. But what will happen between Key and the delinquqent after closing time? And just why did he steal the key's in the first place?

Could this meeting be fate? What will become of the two? And what happenes when the owner of the small bakery feels himself falling head over heels for the other? 

A mysterious boy never really seems to leave the bakery. He is there when Key comes to work in the morning, they are there when it is closing time, until Key has to tell him to leave. Just why is he always there? The boy doesn't even usually buy anything, he just... sits there. Often he can be seen with a scruffy notepad, scrawling into it. Just what could he be writing?