Sa ya Pek - the most fillial or the most unfillial, always cry for his departed mum
Si Ya Pek - very rarely seen in local medium scene like the Sa Ya Pek, once he comes into possession he will have to see blood on his medium and when he leaves the medium, he will have to see blood too. Very fierce, but rank no. 2 fiercest in the underworld. All souls, esp naughty souls are afraid of him.