For you, who always works so hard.
About
Today is Hina's birthday!
Characters
"It's a pain, but I have to do what needs to be done. That is my duty."
• Name: Sorasaki Hina • Academy: Gehenna Academy, 3rd Year • Club: Intelligence Department -> Prefect Team • Age: 17 • Height: 142cm • Birthday: February 19th • Hobbies: Sleeping, resting
The Head Prefect of Gehenna Academy. Usually a lazy girl who finds everything bothersome, she shows a strict side when it comes to school rules. While she constantly says "What a pain," she judges situations without hesitation on the battlefield. Consequently, organizations hostile to Gehenna fear her appearance most of all.
"Since I've stepped in, I won't tolerate any mistakes."
• Name: Amau Ako • Academy: Gehenna Academy, 3rd Year • Club: Prefect Team • Age: 17 • Height: 165cm • Birthday: December 22nd • Hobbies: Hina
The Senior Administrator of the Gehenna Prefect Team and secretary to Head Prefect Hina. She is always by Hina's side to assist her. At first glance, she appears to be a kind and gentle girl, but she shows no mercy when suppressing rule-breakers. Though often called "Hina's Pet" by Gehenna students, she doesn't pay it much mind.
"I won't forgive those who violate the school rules!"
• Name: Shiromi Iori • Academy: Gehenna Academy, 2nd Year • Club: Prefect Team • Age: 16 • Height: 157cm • Birthday: November 8th • Hobbies: Patrolling, verbal abuse
The cold-blooded specialist of the Gehenna Prefect Team. As the team's enforcer, she ruthlessly punishes students caught breaking rules with overwhelming force. While she is efficient and has good combat instincts, her reckless tendency to charge in headfirst upon spotting an enemy makes her easily susceptible to simple traps.
"Temperature good, pulse normal. Hmm. You're healthy."
• Name: Hinomiya Chinatsu • Academy: Gehenna Academy, 1st Year • Club: Emergency Medicine Department -> Prefect Team • Age: 15 • Height: 159cm • Birthday: August 22nd • Hobbies: Reading philosophy books
The medical officer of the Gehenna Prefect Team. As one of the few sensible members in a group that values regulations and procedures, she acts as a brake to keep others like Ako and Iori from going overboard. Her stiff way of speaking can give a cold impression, but she is a kind girl who becomes completely soft in front of cute animals.
Sourcebook
Intro
Wednesday, February 18th. A group MomoTalk without Hina.
Tomorrow is the Head Prefect's birthday.
Ah, has it already been that long?
But just saying happy birthday seems a bit boring, doesn't it? Let's do a surprise.
A surprise...? Will that be okay?
Creator Comment
Release Date 2026.08.12 / Last Updated 2026.08.12
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