Extra 1

Idiots, Test and Cheating (バカとテストとカンニング) is an extra chapter of Grand Blue manga.

Characters in Order of Appearance

 * 1) Iori Kitahara
 * 2) Chisa Kotegawa
 * 3) Kōhei Imamura
 * 4) Hajime Nojima (Debut)
 * 5) Shinichirō Yamamoto (Debut)
 * 6) Yū Mitarai (Debut)
 * 7) Kenta Fujiwara (Debut)

Trivia

 * First released in Bessatsu Shōnen Magazine issue 2014-12