Sankaku Channel/コメント検索

http://g.e-hentai.org/s/f858cbafb4/790403-178

http://g.e-hentai.org/s/43b26a2ba7/790403-165

There is orthros in hair.

こすぷれえっち ～レイヤー香奈の憂鬱～
http://www.cyberworks.jp/wendybell/cosplay/index.shtml

http://softhouse-seal.com/product/010-intravaginal_ejaculate/top.html

It's not typo. 現象 and 現像 are different words.
現象: phenomenon
現像: photographic processing

The name is written in the source of Post #5006043. But there are two names that are thought as her...his name.
鳴尾美木 (Naruo Miki)
鳴尾実 (Naruo Minori)
The story is about disease of genderswap. This artist is trying to publish CG collection using this original character. The settings seem to be still uncertain.

http://dic.pixiv.net/a/%E9%95%B7%E9%99%B8%E5%A5%A5

I did with tag script. 早川茜 is a character in this game .

追伸：ここで活動する日本人はほとんどいないみたいなので、日本語は不要かと

The text "イラスト 園田健一" (illust: Sonoda Kenichi) shows that your expectation is correct.
This work is end card for episode 1 of the TV anime. http://penibo.hatenablog.com/entry/2016/01/08/232500

From the text "カルネ", she is probably Carneades. http://divine-gate.wikia.com/wiki/ID:350

小日向すもも is stepsister of the protagonist(小日向雄真). Father of the protagonist and her mother remarried.
It's not certainty because the face is not visible, but they are stepbrother and stepsister if he is the protagonist.
Is this exactly incest?

TMA in this image is Total Media Agency that is an adult video company in Japan. Those photos are from the parody adult video "涼宮ハヒルの憂鬱".

That's the mold for Japanese confectionery.
According to the official site, she is an only daughter of the inn with Japanese confectionery shop.

This scene is from OAD #6 むむむっ!な健康診断. (Note that the first of OAD is #0.)

According to the following blog this seems the beginning of Episode 68.
http://dreamin-planet.air-nifty.com/blog/2007/08/68_d91a.html