This story is a kind of BANAL or CLICHE. As you can read the title, ibig sabihin, "The girl is doing her job to annoy her guy enemy's ex girlfriend." Pangalawa, "The girl is pretending as a girlfriend of her enemy." Kakayanin kaya nila ang kanilang pagpapanggap? Or slowly, maiinlove sila sa isa't isa? Abangan... :D