E.T. is Estong Tutong (1983)

Estong (Chiquito) was living a simple life when Teresa (Pia Moran) came. Teresa under his custody was at first easy until the reality about her true identity drove both of them to a world full of danger and conflicts. Teresa is an heiress but is surrounded by greed and evil beings. Estong fell in love but his happiness did not last because the one he loves is not a mortal human being but belongs to a different world of wonders and happiness is not that easy to get.