Irene had been happy with her girlfriend, Jennie, her brother, Suho, his wife, Krystal and their daughter, Yeri. Her little family and relationship mean the world to her even if they don't have a perfect life.  But everything came to an end, when her brother and his wife passed away in a fatal car crash, leaving Yeri and lots of unpaid debts under Irene's responsibility. She started to work more part-time jobs while studying and taking care of Yeri with the help of her best friends, S