▁as ▁Samuel ▁Dom ing uez ▁ ▁Car men ▁Sor iano ▁as ▁Henri etta ▁Monte ver de ▁ ▁Mos ang ▁as ▁T et ay ▁ ▁Re z ▁Cor te z ▁as ▁Prof . ▁B anal ▁ ▁A ic elle ▁Santos ▁as ▁Kate ▁B anal ▁ ▁Sue ▁Pr ado ▁as ▁C ora ▁ ▁An ette ▁Sam in ▁as ▁Cla ire ▁C asc avel ▁ ▁Mar nie ▁Lap uz ▁as ▁Mrs . ▁San ▁Jose ▁ ▁Production ▁and ▁development ▁Screen writer , ▁Des ▁Gar bes ▁Sever ino ▁concept ual ized ▁and ▁developed ▁the ▁series ▁in ▁mid - 2 0 1 1 , ▁initially ▁titled ▁as ▁" Ser pent ina ". ▁The ▁idea ▁for ▁the ▁series ▁is ▁inspired ▁from ▁the ▁urban ▁myth — that ▁has ▁been ▁around ▁since ▁the ▁ 8 0 ' s — about ▁the ▁daughter ▁of ▁a ▁m all ▁owner ▁who ▁has ▁a ▁s nake ▁tw in ▁and ▁dwell s ▁in ▁a ▁secret ▁room / bas ement ▁of ▁the ▁m all . ▁The ▁title ▁later ▁change ▁to ▁K ak amb al ▁ni ▁Eli ana . ▁ ▁February ▁ 1 1 , ▁ 2 0 1 3 ▁the ▁four ▁main ▁characters ▁under w ent ▁" s nake ▁work shop " ▁with ▁two ▁Mexican ▁black ▁k ings n akes . ▁The ▁dr ill ▁required ▁them ▁to ▁get ▁familiar ized ▁with ▁all ▁the ▁s nake ▁species . ▁ ▁Rat ings ▁According ▁to ▁A GB ▁N iel sen ▁Philippines ' ▁M ega ▁Man ila ▁household ▁television ▁ratings , ▁the ▁pilot ▁episode ▁of ▁K ak amb al ▁ni ▁Eli ana