Battle Royale

For the Novel, please go to Mitsuru Numai (Novel). For the Manga, please go to Mitsuru Numai (Manga).

Mitsuru Numai (沼井 充, Numai Mitsuru) is a minor character in Battle Royale.


Not much about Mitsuru's background was given. Due to him being the leader in his own gang, Mitsuru might have good leadership skills and he also had a very caring side to him as well, especially when it came to Izumi Kanai. If Mitsuru was anything like his novel and manga counterparts, then he would've had an alcoholic father and been obsessed with being strong.

Friends and Enemies[]

Mitsuru was friends with Hiroshi Kuronaga, Ryuhei Sasagawa, and Sho Tsukioka. His relationship with Izumi was unknown as he was shown to be willing to risk his life for her, so it could be assumed that they were either dating or he had a crush on her. However, this was never explicitly stated. It is more likely he had a crush on Izumi.

Before the Program[]

Before Kitano resigned, Class B decided to take a day off and skip school, Mitsuru included; he attended the basketball game against Class A, and celebrated when Class B won. Mitsuru decided to go on the class trip; while on the bus, he messed around with his friends. Mitsuru fell asleep after breathing in a sleeping gas pumped into the bus; he was then transported to an island and fitted with an explosive collar.

Mitsuru, along with the rest of the class, woke up in a classroom in the island’s school. Unnerved by the presence of Shogo Kawada and Kazuo Kiriyama, Mitsuru rushed over to the window to watch a helicopter land in front of the school. Mitsuru was shocked to see that Kitano had returned. When Kitano asked the class if they knew the BR Act law, Mitsuru kept quiet, obviously knowing the law, but afraid to say it aloud. Mitsuru was horrified upon seeing Masao Hayashida's corpse. When Fumiyo Fujiyoshi was killed, Mitsuru panicked and ran for the door trying to escape before running towards the back of the classroom when the soldiers began firing. When Yoshitoki Kuninobu's collar got activated, (name) ran around the room trying to evade him.

When Mitsuru's name was called, he grabbed his school bag and ran towards the front of the room; he caught his supply bag and ran out of the school.

During the Program[]


Mitsuru (at the right near Izumi and Hiroshi) dead after being shot by Kazuo.

Mitsuru, along with Sho, Hiroshi, Ryuhei, and Izumi, confront Kazuo and accuse him of being a spy for Kitano. Kazuo distracts Ryuhei by spitting his gum at him, takes his Uzi and shoots all of them. Mitsuru takes a few bullets for Izumi, saving her. She pleads for mercy, yet Kazuo simply shoots her in the chest with a spray of bullets.


  • The name Mitsuru means "charge, raise" (充)
  • Mitsuru's surname Numai means "marsh, lake" (沼) (numa) and "well, town" (井) (i)