Its been 4 years since a pregnant Luhan had left China and had settled in Seoul. He had found love again in Sehun, despite having sworn that he would never fall in love again. He had given birth to a healthy son who was growing up and Luhan was happy with his life. Also, there's another good news waiting for their little family. But just when Luhan thought that he had left all the complications behind, his past comes back.