In a world where Hybrids aren't appreciated much, Suho wants to make a change. That's what he thinks when he comes back from the States and faces how conservative Korea is still when it comes to Hybrid. Asking an attractive Hybrid to help him starting the change, Suho never expects that this start is also a new beginning of something else. A new beginning of time-limited story.

This is a story from long long time ago. A story about two person being indebted to each other and not able to pay it back before they parted ways. Now, they met again as two different persons. Will they be able to pay the debts back?