Seulgi's a "Heartmaker," as people of her profession are affectionately called— although she doesn't "make" hearts per say, just fixes them. Most of her clients are the brokenhearted, who have lost faith in love but want another chance. Or, Irene is no different than most that walk through Seulgi's door, though perhaps her heart is a little bit worse for wear and Seulgi won't allow that.