Kei Ôishi: Writer (Writing)2007-06-16

Kei Ôishi: Novel (Writing)2013-09-21

Kei Ôishi: Original Story (Writing)2023-12-13

Kei Ôishi: Novel (Writing)2019-07-19

Kei Ôishi: Novel (Writing)2019-04-12

Kei Ôishi: Original Story (Writing)2005-02-12

Kei Ôishi: Writer (Writing)2012-12-06

Kei Ôishi: Idea (Writing)2013-09-21

Kei Ôishi: Story (Writing)2013-09-21