Every single day,TaeYang,a.k.a Dong Youngbae,goes to the hospital to see his grandfather.CL,Lee Chaerin,goes by the hospital every single day and keeps bumping into Youngbae.G-dragon,Kwon Jiyong,is CL's boyfriend.Dara,Sandara Park,is Youngbae's girlfriend.Dara and Jiyong bump into each other,usually at parties.So,they got attracted to each other without letting their boy/girl friend know.