Knowing his obsession may affect them badly and also make their hard earned reputation to fall to the gutter for being outplayed by a girl, they made a plan, to send the old man to the nerther earlier than planned. Especially when they used to see the old man laughing like a maniac by himself after seeing the good deeds of his daughter, there, they finally judged the old man as crazy or already in the grasp of the evil spirits.
" Guys! We have to save father from the torture of the evil. If we kill his real body, where he is, he will finally rest in peace. " That was the thoughts in their minds as if what they were going to do was right and deemed as saving their father.