A masturbation toy for girls developed by a dark pediatrician.
[Muchakai (Mucha)] Mako-chan Kaihatsu Nikki 2 -Netorare… Itsuwari no Shotaiken- | Mako-chan's Development Diary 2 [English] {2d-market.com} [Decensored] [Digital]
Tomodachi to Kaihatsu Shite Miru Hon. | A book about trying to develop your sensitivity with your friend
Chii-chan's Development Dairy 1
[Developing Person(Hatten Tojounin)] Pink Slime [English] [head empty] [Digital]
[Muchakai (Mucha)] Chii-chan Kaihatsu Nikki Color Ban | Chii-chan Development Diary Full Color Collection [English] {2d-market.com} [Decensored] [Digital]
Seichou Nikki | Sexual Development Journal
(C88) [Yakiniku Tabetai (Derauea)] Uzuki-chan no Suimin Kaihatsu ~Chiryou to Shoushita Honki no Kozukuri Sex~ | Uzuki-Chan's Sleep Development ~Real Baby-Making Sex Passed off as Treatment~ (THE IDOLM@STER CINDERELLA GIRLS) [English] [B.E.C. Scans]
Imouto Saimin Kaihatsu "Karada ga Ugokanai!!" | Little Sister Hypno Development "I Can't Move My Body!!"
Huasanorori 1# Anniversary English
Futanari Choukyoushi ni Kaihatsu Sareru Shota | Boys Getting Developed by Futanari Trainers
Minna no Meshitsukai Kaihatsuchuu desu | Everyone's Servant Is in Development
(C86) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki | Chizuru-chan's Development Diary [English] [Doujin-Moe]
Development Diary Ch.2 – Chii-chan Development Diary 2 {2d-market.com}
[Nengaranenjuu (Nengara)] Kono Ai wa Yamai ni Nite Iru (Bangai Hen) Shitsuke no Kura | This Love is Like an Illness (Extra Chapter) Storehouse Development [English] [Digital]
[Developers (Nagasode)] Sepia-chan wa Choukyou Machine no Ejiki ni Narimashita. [Chinese] [不咕鸟汉化组] [Digital]
(COMITIA97) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki | Chii-chan's Development Diary [English] {Doujin-moe.us}
Chii-chan's Development Dairy 2
(C53) [Studio Mukon (Zyaroh Akira)] SUPPLEMENT AND DEVELOPMENT (Battle Athletes Victory, ToHeart, Darkstalkers)
Fuko no Konsui Rape - Seicho Kiroku | Father Daughter Unconscious Rape : The Development Records
Mesu Danshi Ecchi Manga Tsumeawase
Chizuru-chan Kaihatsu Nikki 4 | Development Diary Ch.8 – Chizuru-chan Development Diary 4
![[Muchakai (Mucha)] Mako-chan Kaihatsu Nikki 2 -Netorare… Itsuwari no Shotaiken- | Mako-chan's Development Diary 2 [English] {2d-market.com} [Decensored] [Digital]](https://cdn.guruhentai.com/size/sW/sWAFgNzOwrC5uFzFHbXcow0.webp)
![[Developing Person(Hatten Tojounin)] Pink Slime [English] [head empty] [Digital]](https://cdn.guruhentai.com/size/z2/z2Uo9LCVwCJE6luMLpG01Q0.webp)
![[Muchakai (Mucha)] Chii-chan Kaihatsu Nikki Color Ban | Chii-chan Development Diary Full Color Collection [English] {2d-market.com} [Decensored] [Digital]](https://cdn.guruhentai.com/size/tp/tpJ_VQmJJ8QPEb5OB-P3qg0.webp)
![(C88) [Yakiniku Tabetai (Derauea)] Uzuki-chan no Suimin Kaihatsu ~Chiryou to Shoushita Honki no Kozukuri Sex~ | Uzuki-Chan's Sleep Development ~Real Baby-Making Sex Passed off as Treatment~ (THE IDOLM@STER CINDERELLA GIRLS) [English] [B.E.C. Scans]](https://cdn.guruhentai.com/size/UY/UYapLulEcoyg2iPoaqDHzA0.webp)
![(C86) [Muchakai (Mucha)] Chizuru-chan Kaihatsu Nikki | Chizuru-chan's Development Diary [English] [Doujin-Moe]](https://cdn.guruhentai.com/size/J5/J5O_krVTRkkaHYtYuqpB9g0.webp)
![[Nengaranenjuu (Nengara)] Kono Ai wa Yamai ni Nite Iru (Bangai Hen) Shitsuke no Kura | This Love is Like an Illness (Extra Chapter) Storehouse Development [English] [Digital]](https://cdn.guruhentai.com/size/mN/mNc03grT8V_a4B8_uApfTA0.webp)
![[Developers (Nagasode)] Sepia-chan wa Choukyou Machine no Ejiki ni Narimashita. [Chinese] [不咕鸟汉化组] [Digital]](https://cdn.guruhentai.com/size/IR/IRgzAU_31ytI1iWD_KEOcA0.webp)
![(COMITIA97) [Muchakai (Mucha)] Chii-chan Kaihatsu Nikki | Chii-chan's Development Diary [English] {Doujin-moe.us}](https://cdn.guruhentai.com/size/iB/i_BRKJbQ6M31j2jkmGLLtQ0.webp)
![(C53) [Studio Mukon (Zyaroh Akira)] SUPPLEMENT AND DEVELOPMENT (Battle Athletes Victory, ToHeart, Darkstalkers)](https://cdn.guruhentai.com/size/Si/SiT77R2gGLyQJRXfJgHHuA0.webp)
