(C80) [Matsumoto Drill Kenkyuujo] C80 Rakugakibon (Various) Hentai (C80) [松本ドリル研究所] C80らくがき本 (よろず)

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

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

[Matumoto Drill Kenkyuujo (Drill Eternal)] Taichou Pinch de Arimasu yo (ToHeart 2)

[ Matsumoto Drill Kenkyuujo] do risu ta (LUCKY☆STAR)

(C67) [Matsumoto Drill Kenkyuujo (NAGANOON, Nasu)] DRILL IMPULSE (Mobile Suit Gundam SEED)

(Toramatsuri2010) [Matumoto Drill Laboratory (Drill Eternal, NAGANOON)] Houkago ○○ Time (K-ON!) [English] [Chocolate] [Decensored]

[Matsumoto Drill Kenkyuujo (Drill Eternal, NAGANOON, Nasu)] Houkago ○○ Time (K-ON!) [Digital]

(C63) [Matsumoto Drill Kenkyuujo (Drill Eternal)] Drill Vanguard (To Heart)

(Toramatsuri2010) [Matumoto Drill Laboratory] Houkago ○○ Time (K-ON!) [English] [Chocolate]

[Matsumoto Drill Kenkyuujo (Drill Eternal)] Tamakin (ToHeart 2)