Battle Royale

For the novel, please go to Hirono Shimizu (Novel). For the manga, please go to Hirono Shimizu (Manga).

Hirono Shimizu (清水 比呂乃, Shimizu Hirono) is a minor character in Battle Royale.


Not much was known about Hirono's past other than she was a delinquent. If Hirono was anything liker her novel and manga counterparts, then she would've hated frogs and would've been involved with drugs.

Friends and Enemies[]

Hirono was friends with two other female delinquents, Mitsuko Souma and Yoshimi Yahagi. However, at some point in the past, Hirono's boyfriend dumped her to sleep with Mitsuko, leading to animosity between the two girls. It's unknown if she got along with Izumi Kanai, Fumiyo Fujiyoshi, or Mayumi Tendo.

Before the Program[]

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

Hirono, 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, Hirono rushed over to the window to watch a helicopter land in front of the school. Hirono was shocked to see that Kitano had returned. When Kitano asked the class if they knew the BR Act law, Hirono kept quiet, obviously knowing the law, but afraid to say it aloud. Hirono was horrified upon seeing Masao Hayashida's corpse. When Fumiyo Fujiyoshi was killed, Hirono 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, Hirono ran around the room trying to evade him.

When Hirono's name was called, she grabbed her school bag and jacket before running towards the front of the room; she caught her supply bag and ran out of the school.

During the Program[]


Hirono dies as she falls to the floor after being shot twice by Mitsuko.

Hirono traveled to the residential area of the island, only to find the bodies of Yoji Kuramoto, Yoshimi Yahagi, and Megumi Eto. She searched the house where Megumi was murdered and found a tampon in the toilet; she checked Megumi, confirming that she wasn't on her period, meaning Megumi was murdered by another girl. Coming upon a small shack where Mitsuko's school uniform is hung up, Hirono decided to wait for her to return. When Mitsuko arrived, Hirono confronted her about the death of the three and accused Mitsuko of killing them, due to the fact that Megumi's throat was slit with some kind of sickle and that Mitsuko had started having her period the day prior. Hirono then began to yell at Mitsuko for stealing her boyfriend and (supposedly) pimping Yoshimi. Mitsuko demanded to know what she did to make everyone gang up on her, but Hirono ignored her and started kicking her, demanding she apologize to Yoshimi and Megumi. Mitsuko struck Hirono's hand with a stun gun and snatched her pistol before holding her at gunpoint; Mitsuko informed her that the stun gun belonged to Megumi, but she was after the pistol all along. Hirono called Mitsuko a bitch and a murderer, to which Mitsuko asked what was wrong with killing, since everyone has their issues. Hirono attempted to stun Mitsuko by throwing her school bag in her face before running, but Mitsuko recovered quickly and shot her in the back twice, killing her.


  • The name Hirono means "ratio, proportion" (比) (hi), "spine, backbone" (呂) (ro) and "from" (乃) (no).
  • Hirono's surname Shimizu means "clear water/pure water, spring water" (清水).


  • This is the only version of Hirono to not get killed by Toshinori Oda.
  • This is the only version of Hirono who doesn't have short dyed hair.