Found the untranslated line, so that'll be fixed in the next update.
As for the walk, my current plan is to wait for the DLC, as there are at least two sister cg's I want to edit and use for the walk to greatly improve it. Will definitely be using your awesome behind the guild scenes when I do though.
What I have found is another unimplemented feature of the game: specifically, asking the sister to masturbate for you from the harassment menu (the same menu as the 'flash your panties'/'get naked for me' menu). It literally even says 'not implemented' in the coding.
![ROFL :ROFLMAO: :ROFLMAO:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I was thinking of something along these lines if you wanted to try it: