Five years later you return to your own country after finishing college in the USA. It's so surprising to find out if Ryou, your ex is currently engaged to your dad. You and Ryou broke up because you decided it. A relationship that has been going on for 4 years must end because you have to continue studying abroad.

At first it was frustrating. And somehow Ryou got to know your dad and intended to be your stepmother after your biological mother passed away two years ago. "Darling, this is Ryou, who will be your stepmother" Said your father who didn't know that Ryou was a lesbian.