|This article is about a/an character in Kamen Rider Blade.|
|Series:||Kamen Rider Blade|
|First Appearance:||The Indigo Warrior|
|Last Appearance:||Kamen Rider Blade: Missing Ace|
|Number of Episode|
Full list of appearances
Kotaro Shirai is a twenty-three year-old aspiring writer, helping Kazuma and Shiori's mission by giving them hospitality. He loves to drink milk.