Girl Power Vol. 17
[Koutarou] B☆B☆IDOL expansion!! [English] {doujin-moe.us}
[Kayanoi Ino] Himitsu no Gohoubi
Dead or Alive | Girl Power Vol.17 [Koutarou With T]
Pandemic Love
[OHKOSHI Koutarou] Figuisch [English] [Fumikiri] (Ch. 1-8 of 10)
Hatsutaiken, Jeanne | Jeannes First Sexual Experience
COMIC Ananga Ranga Vol. 32
[Crimson Comics (Carmine)] Utakata
(C72) [Motsu Ryouri (Motsu)] Kaku Musume 9 (Street Fighter)
Comic Bazooka DEEP 2007-11 Vol.3
COMIC Purumelo 2014-04
Comic Purumelo 2008-10 Vol.22
[Kitakata Kuniaki] Kazoku Yuugi - Family Play [English] [Coff666]
Futari de Onanie Shite Nani ga Warui!
Mitsu-Man 2009-05 Vol.09
S, Taikenban
COMIC Bazooka 2011-12
Utakata sukui
(C69) [Type-G (Ishigaki Takashi)] Utakata Sakurairo (Fate/stay night)
MOTO-KANO
(C66) [Koutarou With T (Koutarou, Oyama Yasunaga, Tecchan)] GIRL POWER Vol.18 (Dead or Alive)
COMIC Purumelo 2008-03 Vol.15
COMIC Purumelo 2013-07
COMIC Purumelo 2014-10
Venus Mansion Episode 2
COMIC Purumelo 2014-01
(CR36) [Koutarou With T (Koutarou, Oyama Yasunaga, Tecchan)] Girl Power Vol. 19 (Various)
Figuisch
[Dynamite Honey (Machi Gaita)] Dynamite Series 5 Dynamite Honey (Cutey Honey)
COMIC BAVEL 2016-04 [Digital]
コエニダシテ。
Young Champion Retsu Vol.13
[Rippadou] NEXT 3 (Gundam) [Digital]
(C82) [Nijiiro Zakura (Koutaro)] mini niji
[Kitakata Kuniaki] Kazoku Yuugi - Family Play [Digital]
Men's Gold 2008-11
[Anthology] Denei Tamatebako 8 - Utakata no Tenshi-tachi II (Various)
(C57) [Q-bit (Q-10)] Q-bit Vol. 04 - My Name is Fujiko (Lupin III)
COMIC Purumelo 2009-09 Vol.33 [Digital]
[Koutarou] BIRTH
(C94) [Takatakaya (Kaniya Shiku)] Shota ga Tame ni Bel wa Naru 2 (Azur Lane) [Chinese] [無邪気漢化組]
[Koutarou with t] Naked
COMIC Purumelo 2009-07
takatan 2020 teaser
[Anthology] Houkago Sex Life
COMIC BAVEL 2015-11
(COMIC1☆10) [Takatakaya (Kaniya Shiku)] Niizuma Juujun Suzuya Ikku yo (Kantai Collection -KanColle-)
(COMIC1☆15) [Takatakaya (Kaniya Shiku)] Ore no Imouto wa Tsuki 1 de Hatsujouki ga Kuru. [Chinese] [靴下汉化组]
Bokuto Koutarou x Keiji Akaashi Set
Zombie Nikusetsu Eigyou
Utakata no Sake ni Midaretai
[Koutaro] Tropical KISS Visual Fan Book - Koutaro Art Works