Exchange girlfriend

Two bestfriend have same face that might make netizens confuse.Eunji and Minah are bestfriend since they child.But after a year,Eunji and Minah doesn't  see each other because Eunji went to Paris to study.Minah went to Seoul to find a job.But ..Eunji has return from Paris with his boyfriend.While they eating at Caffe Bene.Eunji's  boyfriend,Sungjae went to his car to took something and suddenly,he bumped with Minah.And he thought that Minah was his girlfriend.And something weird happen to Minah and Eunji.