1-3: Young expressionless worker falls in love in his co-worker, a sex-shops' addict. 
4-5: An ordinary high school student finds himself in a sudden relationship with the school's idol. 
6: The erotic love story of a man with a weird virgin fetish. A subordinate who’s crazy about virgins takes his boss’s first time. 
7: 6 Short Extra 
8: 1-3 Extra

Volume 1 (2012/6/25) 
Cover illustration: Yuiji Aniya
 
1. Toyed. by Yuiji Aniya 
2. Love or Kick! by Nawako Mineshima 
3. Jyoukyou Monogatari (ジョーキョー物語) by Ai Nimoda 
4. Boku wa Anata ni Koi wo Suru (僕はあなたに恋をする) by Kei Ichikawa 
5. Red Hot Sweet by Musashi Yamane 
6. Ohirusagari no Hana no Kimi (御昼下がりの華の君) by Pie Sankakusha 
7. Koosuke-san, Zenra de Taiki! no Maki (コースケさん、全裸de待機!の巻) by Yamawomi 
8. Sono Uso wa Kuchihodo ni Shinijitsu wo (その嘘は口ほどに真実を) by Ringo Yuki 
9. Aotenjou no Killing Joke (青天井のキリング・ジョーク) by Funa Isono 
10. Kimishigure (キミシグレ) by Dokuro Jaryuu 
11. Chronic (クロニック) by Kashio
 

Volume 2: "Erotoro R18" (エロとろ R18; 2013/6/28) 
Cover illustration: Yuiji Aniya
 
1. Sweet♡Sweat♡Monkey by Yuiji Aniya 
2. Saigo no Hito (最後のひと) by Delico Psyche 
3. Saiminjutsu Nyuumon (催眠術入門) by Kashio 
4. Kaze no Sukima (風の隙間) by Kei Ichikawa 
5. Three Piece! by Ai Nimoda 
6. Ore, Higaisha (おれ、被喜者) by Hidesato Kimura 
7. Oh My Chubby,baby! by Nawako Mineshima 
8. Tenshiban no Ue (展翅板の上) by Nishi Sato 
9. Sickly by Musashi Yamane 
10. Help? by Yashiko 
11. Hen-ai (変愛) by Harada
 

Volume 3: "Erotoro R18 ver.SS" (エロとろ R18 ver.SS; 2014/8/9) 
Cover illustration: Yuiji Aniya
 
1. Fuuzokugurui deshita ga Toshishita Gakusei no Koibito ga Dekimashita (風俗狂いでしたが年下学生の恋人ができました) by Psyche Delico 
2. Nurui Otoko (ヌルイ男) by Aniya Yuiji 
3. 7-ji 32-pun 7-ryoume no Kimi (七時三十二分七両目の君) by Kashio 
You’ve heard about subway gropers, right? But what if someone had a fetish… to be groped… by a certain someone? 
4. Hen-ai: Maotoko-hen (変愛 間男変) by Harada 
5. Kairaku Loop (快楽ループ) by Musashi Yamane 
6. S dakara tte Namenna yo! (Sだからってなめんなよ!) by Ai Nimoda 
7. Koroshiya no Takaragai (殺し屋の宝貝) by Isato Natori 
8. Koi to wa Kinaru Mono (恋とは奇なるもの) by Nawako Mineshima 
9. Kajima-kun no Shiranai Nichijou (鹿島くんの知らない日常) by Hidesato Kimura 
10. Live by Eigo Yashiki 
11. Namae sae Iwanai (名前さえ言わない) by Kou Okada 
12. Furueru Mune no. (ふるえるむねの。) by Ricoco Coconoe 
13. 24-jikan Ireppanashi Practice (24時間挿れっぱなしプラクティス) Purugaria 
14. Ikujinashi no Spectator (いくじなしのスペクテイター) by Ataru Yamamoto 
15. Kanojo nano ni Otoko (彼女なのに男) by Inutoki & Shouhei 
16. Kiyoku Tadashiku Kashikou Renai! (清く正しく賢く恋愛!) by Yashiko
 

Volume 4: "Erotoro R18: Hatsukoi" (エロとろ R18 ～初恋～; 2015/6/10) 
Cover illustration: Yuiji Aniya 
1. Abenobashi, Hairo no Jinrui (あべの橋、灰色の人類) (The Gray Humanity of Abenobashi) by Hidesato Kimura 
Story of a guy doing lil yakuza jobs and his chance meeting with a guy named Megumi. 
2. Tonari ni Sunderu Neko no Koto (隣に住んでる猫のこと) by Delico Psyche 
A story about cousins, unhealthy relationships, and denial of one’s sexuality. And of course rough sex.
 
3. Ezaki Shounen no Yuuutsu (江崎少年の憂鬱) by Kashio 
4. First Love? wo Mouichido (ファーストラブ?をもう一度) by Yamawomi 
5. 0-ten Manten (0点満点) by Emao 
6. Sen wo Kaku (線を書く) by Aki Sakamoto 
7. Boku wa Ninkimono (ボクは人気者) by Inutoki & Shouhei 
Prequel to a story in Ringo, Ki kara Ochiru 
8. Koi ni Ochite Gomennasai (恋におちてごめんなさい) (Sorry for Falling in Love) by Yuiji Aniya 
9. Afureru Nureru (あふれる漏れる) by Yashiko 
10. Chigireta Te no Naka (ちぎれたてのなか) by Ricoco Coconoe 
11. Suimenka (スイメンカ) by Harada

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