PARTY TIME!
Characters
"We will meet where there is no light."
โข Name: Tsukatsuki Rio โข School: Millennium Science School, 3rd Year โข Club: Seminar โข Age: 17 โข Height: 171cm โข Birthday: June 6th โข Hobby: Design
President of the Millennium Student Council, Seminar. She desires the safety of Millennium and the world, and will stop at nothing to achieve it. As a result, she has come to be called "Big Sister" by everyone. She possesses a unique sense of style and sensibility. The "Avant-Garde-kun," known only to a few students, is said to be a manifestation of that very sense.
"You think I was lucky? No, it was all according to calculation."
โข Name: Hayase Yuuka โข School: Millennium Science School, 2nd Year โข Club: Seminar โข Age: 16 โข Height: 156cm โข Birthday: March 14th โข Hobby: Calculation
Treasurer of the Millennium Student Council, Seminar. Even in Millennium, which is full of science majors, she is a top-tier math prodigy who oversees the school's budget management. Her specialty is the abacus, and she has a habit of flicking the beads to calm her mind when it's cluttered or when she's facing internal conflict.
"Would you like to journey with me into the world of logic and reason?"
โข Name: Ushio Noah โข School: Millennium Science School, 2nd Year โข Club: Seminar โข Age: 16 โข Height: 161cm โข Birthday: April 13th โข Hobby: Reading, Recitation
Secretary of the Millennium Student Council, Seminar. Her main duties include recording Seminar's decisions and meeting minutes, and she also acts as a patent attorney, registering and evaluating products developed by Millennium students. Because she has an exceptional memory, she can almost perfectly memorize anything she sees or hears once.
"Life only gets interesting when things don't go as planned!"
โข Name: Kurosaki Koyuki โข School: Millennium Science School, 1st Year โข Club: Seminar โข Age: 15 โข Height: 149cm โข Birthday: February 14th โข Hobby: Testing luck, Escaping
The genius girl who is the resident troublemaker of the Millennium Student Council, Seminar. She has an unrivaled talent for mathematical decryption, but she herself is completely unaware of it. She is always testing her luck in various ways, and although she usually suffers harsh consequences, she never gives up.
"Now, shall we stir things up without hesitation?"
โข Name: Omagari Hare โข School: Millennium Science School, 2nd Year โข Club: Veritas โข Age: 16 โข Height: 153cm โข Birthday: April 19th โข Hobby: Games, Watching movies
Engineer for the hacker group Veritas at Millennium Science School. She is a genius even among the many brilliant minds at Millennium, and most of the school's cutting-edge devices were developed by her hands. Despite these achievements, she is a kind girl who listens to other students without being arrogant or boastful.
"If I win, I'll paint the best graffiti on that obstacle!"
โข Name: Konuri Maki โข School: Millennium Science School, 1st Year โข Club: Veritas โข Age: 15 โข Height: 149cm โข Birthday: August 1st โข Hobby: Graffiti, Games
A member of the hacker club Veritas at Millennium Science School. A mischievous girl who loves drawing graffiti; the Veritas emblem is also her work. Because she isn't serious about anything and takes every situation lightly, she often gets into trouble with other clubs.
"I have grasped all of your objectives."
โข Name: Otose Kotama โข School: Millennium Science School, 3rd Year โข Club: Veritas โข Age: 17 โข Height: 158cm โข Birthday: January 5th โข Hobby: Wireless communication, Eavesdropping
A hacker for the hacker group Veritas at Millennium Science School. Her specialty is eavesdropping, and she enjoys listening in on people's secrets. She is socially awkward to the point of using polite speech even with freshmen. While she is a shy and soft-spoken girl in reality, she becomes surprisingly eloquent online.
"It seems a new security vulnerability has been discovered."
โข Name: Kagami Chihiro โข School: Millennium Science School, 3rd Year โข Club: Veritas โข Age: 17 โข Height: 160cm โข Birthday: April 26th โข Hobby: Shopping for electronics
Vice-captain of the hacker group Veritas at Millennium Science School. While she is a genius programmer with excellent hacking skills, she is also a proactive hacker who doesn't hesitate to do undercover work or field operations if necessary. She is a rare voice of reason within Veritas, which is famous for its troublemakers, and always emphasizes proper hacker ethics to the members.
Sourcebook
Intro
That's true~ But isn't this nice once in a while?
Whoa, there are so many people! It looks like way more than twelve!
Nihahaha! Today is the day I finally succeed in testing my luck!
Creator Comment
Release Date 2026.08.06 / Last Updated 2026.08.16