(C86) [PNO Group (Hase Yuu, Hikawa Yuuki, Yamamoto Ryuusuke)] Carni☆Phan tic factory 6 (Fate/stay night, Fate/Zero)

(C83) [PNO Group (Hase Yuu, Hikawa Yuuki, Yamamoto Ryuusuke)] Carni☆Phan tic factory 3 (Fate/zero) [English] [Tigoris Translates]

(C82) [PNO Group (Yamamoto Ryuusuke, Hikawa Yuuki, Hase Yuu)] Carni Phan tic Factory 2 (Fate/stay night, Fate/zero) [English] [Tigoris Translates]

[Spicy Daisakusen (Hikawa Hekiru)] MISSONSPICY The Fifth Side-B (Street Fighter (series))

(C81) [PNO Group (Hase Yuu, Hikawa Yuuki, Yamamoto Ryuusuke)] Carni☆Phan tic factory (Carnival Phantasm)

[DATE] Totsugeki, Hikawa san! (COMIC Junai Kajitsu 2011-07)

[Eguchi Hiroshi (aka F.S)] Hikawa Haruka no Amazing na Junan

(C75) [PNO Group (Hase Yuu, Hikawa Yuuki, Yamamoto Ryuusuke)] Punokan 2 (To LOVE-ru, Code Geass)

(C87) [PNO Group (Hase Yuu, Yamamoto Ryuusuke, Hikawa Yuuki)] Carni☆Phan tic Factory 7 (Fate/kaleid liner Prisma Illya, Fate/Zero)

(CR29) [UA Daisakusen (Harada Shoutarou, Hikawa Hekiru)] Ruridou Gahou 14

(C65) [PNO Group (Hase Yuu, Hikawa Yuuki)] Negima Chick Factory (Mahou Sensei Negima!)

(C70) [PNO Group (Hase Yuu, Yamamoto Ryuusuke, Hikawa Yuuki)] TH2 Chikku Factory -Xrated- (ToHeart2 Another Days)

(C79) [PNO Group (Yamamoto Ryuusuke, Hikawa Yuu, Hase☆Yuu)] Bakemono Chitsuku Factory (Bakemonogatari)

[Eguchi_Hiroshi]Hikawa Haruka no Amazing na Junan

(C63) [PNO Group (Hase Yuu, Hikawa Yuuki, Yamamoto Ryuusuke)] UtaKomi Chick Factory (Utawarerumono)

(C74) [PNO Group (Hase Yuu, Yamamoto Ryuusuke, Hikawa Yuuki)] TH2 Anadichikku Factory (ToHeart 2 Another Days)

(C71) [PNO Group (Hase Yuu, Hikawa Yuuki)] TH2tic Factory -XRATED- 2 (ToHeart 2)

The Secret Hikawa-san

After School Sex Slave Club2 - Kyouko Hikawa

Hikawa Sayo Sei Shidou

Hikawa Sayo Ryoujoku Goudoubon

Hikawa House's Hospitality

Hikawa House's Hospitality

Hikawa House's Hospitality

Hikawa Sayo Sei Shidou

[Tsukishiro Saya] Hikawa-ka no Ibitsuna sei Jijō dai 1-wa [Shūsei-ban]

Hikawa Sayo Ryoujoku Goudoubon

Hikawa House's Hospitality

Hanasakigawa Joshi Gakuen 3-nen Hikawa Sayo-san

[Tsukishiro Saya] Hikawa-ka no Ibitsuna sei Jijō dai 2-3

Hikawa Sayo Ryoujoku Goudoubon

[Tsukishiro Saya] Hikawa-ka no Ibitsuna sei Jijō dai 2-4

Hikawa-ka no Ibitsuna sei Jijō dai 2-3

[Hikawa Ritsu] Tonari no Douryou ga Erosugiru!! ~Takumashii Ude ni Dakarete... Iku~ (1)

(Hikawa Rhythm) [Ishiyaki Imo (Ishida)] Anata ga shitaitte Iu kara (BanG Dream!)