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Seiichirou OYAMA
大山誠一郎
Taiwan
Born in Saitama Prefecture in 1971. In 2002, he published "She Couldn't Have Killed Patience" on e-NOVELS before making his official literary debut in 2004 with Alphabet Puzzlers. In 2013, he won the 13th Honkaku Mystery Award for The Locked Room Collector. His other works include Mask Fantasia.
Seiichirou OYAMA
大山誠一郎
Japan
Born in Saitama Prefecture in 1971. In 2002, he published "She Couldn't Have Killed Patience" on e-NOVELS before making his official literary debut in 2004 with Alphabet Puzzlers. In 2013, he won the 13th Honkaku Mystery Award for The Locked Room Collector. His other works include Mask Fantasia.
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