Poirot’s chief personality characteristic was undoubtedly his overweening - but lovable - egotism. On rare occasions he would present an appearance of modesty, but it was patently so forced and false that it fooled no one. Some of his own evaluations from one story or another: “Hercule Poirot… is of a cleverness quite exceptional;” “impossible to deceive Hercule Poirot;” “me, I know everything.”
- Russell H. Fitzgibbon, The Agatha Christie Companion
Hi! I loved the Daughter Arc among other things precisely because it clearly showed that for a moment without any doubt there was the chance to stop fighting. In the chapter 3 people when Hinami states she is sad and she doesn't want to kill Mado there is a situation of status quo which Mado breaks to kill Hinami and not because it's his duty, but because he is disgusted and probably can't accept Hinami's feelings. I hope the resolution of that arc doesn't simplify that situation.