[Japanese] help with goukan-juu ~nerawareta 11.1 gakusei~ progress

[Magatsu923]

I have this VN and I am currently playing it but the problem is I can't progress any further I'm trying to unlock all CG but there is one character who will not show up I have done everything I can think of and nothing I'm on my 12th playthrough and still nothing to show for it I am trying to spawn in the character in the picture in the following link: https://e-hentai.org/s/890edeb1dc/112657-16 please help this is getting ridiculous on my part I mean 12 playthroughs and I still can't spawn her