Chaewon was no ordinary like the other human beings. She was born with the power to leap through time. As fun as it might sound like, Chaewon's power was soon discovered by none other than the Time Warden itself. Thus, restricting her power to work-related uses only. She can only trigger her power when using a special pocket watch created by the Time Warden.

To make it short, Chaewon now works under the Time Warden as their personal time travel detective. They are times where things needed to be fixed in the past and that would be, of course Chaewon's job.