Thread:Mesektet/@comment-24602967-20141113163149/@comment-5964028-20141113173430

Light Yagami offers to run an errand on his sister's behalf, with no apparent ulterior motive - this gets him into position to commit one of his most heinous acts of the first arc, when he tricks and murders Naomi Misora. Much later, in the manga, he talks his father out of quitting his police job; the motive is purely that Soichiro has risen to the top of his profession and Light can't let him give it all up. Again, this is despite the fact that Light's own actions are responsible for the Kira case, which is destroying Soichiro, and that in a few chapters' time Light will rationalise, accept and plan for Soichiro's murder, although he never has to carry it out