At least if he have to add this extra scene do not censor it...Woah, wait a minute I don't remember this in the novel
Thats typical for a Japanese MC though, another typical thing i bet will happen is that the MC will let the other guy escape so that he'll become a greater problem later on or the other guy will let go scot free.oh how the turn tables turnt. Also why tf would he leave her alone at home if he knew there was a stalker????