|Tsurutani and Inukai|
|Side Story Information|
|Characters on Cover|| Daiki Mamura|
Tsurutani and Inukai (犬飼くんのはなし。, Inukai-kun no Hanashi.）is a side story of Hirunaka no Ryuusei detailing Inukai and Tsurutani's relationship. It is one chapter long and was included in the back of volume 10. It is sometimes known as chapter 66.5.