Seems that, despite her initial premise that "it's only for the sake of adding realism to her work", Nishigami seems to be (a-hem) interested in Hakuruku. And as things (a-hem, again) progress, the line between what she says she wants and what she might really want blurs further and further.
And on page 18, Hakuruku receives a bag containing ropes ... wait, what? ... this is an H-manga setting, so There Can Be Only One thing for which those ropes are to be used.
That's certainly an interesting title.
One thing though, in a situation like that...I'm pretty sure the guy wouldn't use a condom?
Either way I suppose. Great ending though. Possible sequel...maybe?