It's a story of 2 orphanage child that's live on their own at an old village house... Eun Min whom a sister of D.O (Exo )really loves her brother and after the day of happening her brother died because of an accident..
There was once an orphan girl living in a city with his small brother she worked in a big company called the uchiha company and one day the boss held a very big party for their huge success in their company...so the boss called all their workers parents or family members too but the normal girl had no one beside his brother so they both went to the party and some stuff happens.....