When fireflies come into our lives they are there to guide us to ways of living that are more earth-friendly, and soul-friendly. Fireflies teach us the value of living simply, and relying on our own inner voices for illumination. Fireflies also come to us with a message of creativity, and remind us that our paths are made lighter by the beauty that we allow into our lives. - cr

Jinhee is just a common girl with lots of problems in her life that began to make her lose hopes. Until she met a man who seemed to be in the same stressed condition as she did, and figured out that he's going to solve it in a way that even she couldn't do it. Suicidal was the last thing in her mind, so she did all she could to save him out of whatever his problems were.

But who knows when in the end instead of her helping him with the matter, it's the other way around?