Season 1 of Pink Sin premiered on November 16, 2018.

Patsakorn is the only heir of a millionaire who hides his cruel coldness under his good looks. He started to act out toward his father after his mother died. When Kangsadan enters his life, he cannot hide his interest in this kind and sassy girl. But his world begins to twirl upside down when his father brings home the exact girl (he is interested in) and her mother home and decides that they will live with Peat and his father as a family because of Khun Sa being sick.