Vol.4 of アイオンコミックオリジナル (Aion Comics Original)'s がっちり★快楽ランド series. "がっちり" possibly means strong, unbending in both figure and spiritual. Let's wait for the 5th volume, this one can be bought from:
http://www.dlsite.com/maniax/work/=/product_id/RJ109534.html

List of works and their authors:

淫極の制服車両
Uniform Train of Lust
page 003-025
by はにわ (Haniwa)

催眠コンタクト 第1話
Hypnosis Contact, ep.1
page 026-037
by しまシュー (shima syu)

性転換!? ～アイツが私の身体を狙ってる～
Transexual!? My Body is the Guy's Target
page 038-049
by 多摩川雪丸 (Tamagawa Yukimaru)

絶体絶命エージェントLv1
Desperated Agent Lv1
by 黒木一朗 (Kuroki Ichiro)

快楽実験アブダクション ✥聖マーリン学園奇譚✥ 第2話
Pleasure Experiment Abduction, ✥Tale of the St. Merlin Academy✥ ep.2
page 050-061
by Y4

ねっとりネトラレ 第2話
Nettori Netorare ep.2
page 062-076
by 藤島製1号 (Fujishima Sei1go)

人形少女 第2話
Doll Girl ep.2
page 077-089
by 神尾96 (Kamio 96)

恥辱生徒会 第1話 役員3人の痴態
Disgraced Student Council ep.1
page 090-101
by 深山カラス (Miyama Karasu)

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I'm possibly going to upload another supplementary of 2D Dream Magazine/Unreal Comics, and its related novel tomorrow and the day after, then I'll start the project. For more info visit my personal EHwiki page:
http://ehwiki.org/wiki/User:Lord_of_Evil

Thanks for the info on each work, but I still don't know how did the guy body swap with the girl during the infiltration...But nevertheless, it's good

Base +7

Where's the NTR? I don't feel it.

Base +2

少兩頁
ACO04_004
ACO04_094
pdf版本中確認是有這兩頁

Base +9

@ BillNine10
you don't feel it, but i can read it (kana-kanji)!

Also, "Netori-Netorare vol.2"

Base +9

would like a English version

Base +17, liberius +8

The Pg26 and Pg38 story titles are flipped, White Christmas, that's why.

Pg26 is the Body Target one, and Pg38 is the Hypnosis one.

Base +4