|Killed by:||Kazuo Kiriyama|
|Cause of Death:||Shot|
Keita is a basketball player for Class 3-B; Keita Iijima, Shinji Mimura, Hiroki Sugimura, Shuya Nanahara, and Kazuhiko Yamamoto competed against Class 3-A in one scene. Keita also has a habit of laughing at inappropriate times. Keita is friends with Shinji Mimura, Shuya Nanahara, and Yutaka Sato.
In the Program
Keita nervously laughs after Kitano announces the premise of Battle Royale. When Kitano demands to know why he laughed, Keita can give no answer. But when his name is called, Keita leaves the classroom in a dignified manner by looking back at his classmates and thrusting his tote bag over his head. Keita receives a jitte as his weapon and aids Shinji in his plans to blow up the school by helping Yutaka gather the ingredients and create the bombs while Shinji works on infecting the computers. Their plan is derailed however, when Kazuo Kiriyama comes across the group as they load the bombs into a truck to drive to the school. Initially mistaking Kiriyama for Shuya Nanahara, Yutaka calls out to him and is fatally shot. After a brief and unsuccessful gunfight, Keita is also shot by Kiriyama. Before dying, Keita laughs and repeats Shinji's promise from before that they would all survive and return home together.