Tsurupeta Kenkyuu Tokubetsu Houkokusho ~Artbook of Hirohiroki Hentai Porn [つるぺた研究所] つるぺた研究特別報告書 ~ひろひろき先生画集~

Tsurupeta Kenkyuusho Houkokusho

(C85) [Matsumoto Drill Kenkyuujo (Naganoon)] ChitoChiyo Shimai no Unyou ni Tsuite (Kantai Collection -KanColle-)

(C86) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 009

(C77) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Shin Hissatsu Waza no Kyoufu " - Turupeta Research Report

Tsurupeta Kenkyuu Houkokusho 011

(Reitaisai 9) [Matsumoto Drill Kenkyuujo (Kazumi Yoshiyuki/NAGANO~N)] Tarugata Miko Hall - Miko★Ero (Touhou Project)

[Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 005 "Dengeki Jigoku" - Turupeta Research Report

(C73) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho "Tsurupeta Kyoudan no Yabou " - Turupeta Recearch Report

(C75) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho "Kessen Zenya" - Turupeta Research Report

(C74) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Kakyuu Sentou In no Isshou" - Turupeta Research Report