QUOTE(morganize @ Jan 2 2023, 23:40)
![*](style_images/ambience/post_snapback.gif)
Now you said it, it seem I also skip that page as well since I can't figured out what that word mean. Probably something to do with SNS?
Well, consider the situation.
On page 6, this man somehow found her through her nudes. He says
こういう事するならちゃんと特定材料隠しとかないと。
"If you're going to do something like this, you have to properly hide 特定材料."
Later in the story, on page 11, the same term appears but it's split up. So it's clear that the two separate parts have meanings on their own as well.
"Let's take off your uniform!"
"Because your uniform will also become 特定 の 材料."
Note the 'ちゃう' ending which indicates it would be bad or unfortunate.
If you go to handy online Japanese<>English dictionary and search for 特定:
[
ejje.weblio.jp]
https://ejje.weblio.jp/content/%E7%89%B9%E5%AE%9A|| identification.
If you search for 材料:
[
ejje.weblio.jp]
https://ejje.weblio.jp/content/%E6%9D%90%E6%96%99|| grounds (for a decision, judgement, etc.); basis; evidence; data