Happy Lesson - Tanoshi
(C60) [Sanazura Doujinshi Hakkoujo (Lopez Hakkinen, Sanazura Hiroyuki)] Shumi No Doujinshi 2001 SUMMER (Sakura Taisen 3: Pari wa Moete iru ka?, Gunparade March)
(C59) [Sanazura Lopez (Lopez Hakkinen, Sanazura Hiroyuki)] Shumi no Doujinshi 12 (Ah! Megami-sama, Card Captor Sakura)
(C51) [Sanazura Doujinshi Hakkoujo (Fukuda Banken,Lopez Hakkinen,Sanazura Hiroyuki)] Sanadura Hiroyuki No Shumi No Doujinshi 3 (Sakura Taisen)
(C55) [Sanazura Doujinshi Hakkoujo (Sanazura Hiroyuki, Lopez Hakkinen)] Sanazura Hiroyuki no Shumi no Doujinshi 7 (Kare Kano, St. Luminous Mission High School, Street Fighter)
(RAG-FES48) [Hakkindo (Suisui)] Immoral SECRAMENT 4 (Ragnarok Online)
(C65) [Kuroyuki (Kakyouin Chiroru)] Gohoushi Club 04 (Happy Lesson)
(C88) [Hakkindo (Suisui)] Tettai Shippai (Sennen Sensou Aigis) [Chinese]
[Kuroyuki (Kakyouin Chiroru)] Gohoushi Club 4 Happy Lesson hen Full Color ban (Happy Lesson) [Digital]
(C90) [Hakkindo (Suisui)] Casino Medal ga 0 ni Narimashita (Granblue Fantasy)
