■OYAMA SEIICHIROU
■
Niwaka Mei Tantei Watoson Tsutomu
Oyama Seichiro / Cho
BOOK | 2024/05/22
within 2-4 weeks
■
Misshitsu Taizen Misshitsu Mystery Anthology (Asahi Bunko)
Aoyagi, Aoito Jin / Cho Oyama, Seichiro / Cho Onda, Riku / Cho Kishi, Yusuke / Cho Nakayama, Shichiri / Cho Higashigawa, Tokuya Atsushi / Cho Maya, Yutakasa / Cho Wakatake, Nana Umi / Cho Sen Gai, Akiyu Kino / Hen
BOOK | 2023/07/07
within 2-4 weeks
■
Shosetsu Tori Ppa 2023 Nen Kaki Go (Weekly Asahi MOOK)
Asahi Shimbun Publications
BOOK | 2023/06/16
within 2-4 weeks
■
Kamen Maboroshi So Kyoku (Shogakukan Bunko)
Oyama Seichiro / Cho
BOOK | 2023/06/03
within 2-4 weeks
■
Kono Mystery ga Sugoi! 2023
"Kono Mistery ga Sugoi" Henshu-bu
BOOK | 2022/12/03
within 2-4 weeks
■
Shosetsu Tori Ppa 2022 Nen Shunki Go March 2022 Issue [Shinrensai] Tanaka Maki Wataru
Asahi Shimbun Publications
BOOK | 2022/03/17
Sold Out
■
Tokei Ya Tantei No Boken (Alibi Kuzushi Uketamawarimasu)
Oyama Seichiro / Cho
BOOK | 2022/03/16
within 2-4 weeks
■
Kioku No Naka No Yukai (Bunshun Bunko O68-3 Akai Hakubutsukan)
Oyama Seichiro / Cho
BOOK | 2022/01/04
within 2-4 weeks
■
Kamisama no Wana (Bunshun Bunko)
Mizuki Tsujimura
BOOK | 2021/06/04
within 2-4 weeks
■
Shosetsu Shincho February 2021 Issue
Shinchosha
BOOK | 2021/01/22
Sold Out
■
Watoson Tsutomu
Oyama Seichiro / Cho
BOOK | 2020/09/16
Sold Out
■
'20 Honkaku O (Bunko Ho 31-22)
Honkaku Mystery Sakka Club / Sen Hen Yuki Shinichiro / [Hoka Cho]
BOOK | 2020/08/07
within 2-4 weeks
■
All Yomimono July 2020 Issue [Feature] Jidai Shosetsu Yume No Kyoen
Bungeishunju
BOOK | 2020/06/22
Sold Out
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Alibi Kuzushi Uketamawarimasu (Ruelle Comics)
Oyama Seichiro / Original Writer Sanorin / Manga
BOOK | 2020/02/21
within 2-4 weeks
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