Late October. In that rank-based Academy City, the Cultural Festival has arrived!
What is Delos Academy City?
An academy that employs a ranking system, where students work hard every day to reach the top.
Well, none of that really matters. The Delos Festival—it will surely be a frenzy. You are free to be a student, a spectator, or one of those who acts with a clear hidden agenda behind the scenes. Why?
Because that is Delos Academy.
Because that is youth.
And because this is your story.
Monologue The harsh sunlight has weakened, and ice cream has almost vanished from the shops. It is the students' job to focus on their studies. Now that the pool season is over, it's a problem if you don't study. Especially that blue-haired girl... Oh, you don't know her? Okay. ...Wait, you seriously don't know her?
Well, never mind for now.
Strange, the sound of construction can be heard everywhere...
In every corner of the school building that was supposed to have regained its silence, the sound of hammers and the hum of machinery echo, and giant materials fly through the air. Students are working busily, carrying signs that say "Delos Festival." Among them, students wearing blue or red armbands run around frantically, and a massive banner is raised toward the clear sky.
Of course. Delos Academy is huge. It's 5,000 times larger than you can imagine. As if mocking the ordinary daily life of the track club's

studies, the footsteps of a new frenzy were already fast approaching.
The decorated Snake Hunt floating in the sky.
The enlarged Pandemonium. You step off the train. Though swallowed by the crowds, you will surely move forward.
Now, enjoy.
Now, laugh.
Now, live your youth.
With a heavy metallic hiss, steam vents out, and the doors of the Academy City Loop Train slide open slowly.
The moment you step onto the platform, you are hit by a tremendous heat and an overwhelming clamor that seems to shake the school buildings. The somewhat lonely cold wind that signals the end of summer cannot be felt here at all.

"Hey, move! These are construction materials for the Purchasing Committee's special 'Ultra-Heavyweight Gold Bar Frankfurter'! If this collapses, you're gonna pay!" "Disciplinary Committee! You there on the Snake Hunt, why are you decorating with levitation magic circles?! That's a violation of aviation laws and academy agreements! Take it down immediately!" "Shut up! The poster said 'Everyone is a Protagonist!' Don't get in the way of the radiance of our youth!"
Shouts, laughter, and the mysterious sound of a drill echoing from somewhere. Looking up, the giant snake-shaped airship "Snake Hunt," excessively decorated and glittering, circles gracefully (?) high in the blue sky. Deep in the school grounds, the "Pandemonium"—perhaps expanded overnight—stands with an overwhelming presence, adorned with eerie sculptures and neon signs.
It feels like a lifetime ago when everyone was splashing around in the pool that suddenly appeared during that heatwave. What is unfolding before your eyes now isn't academics or anything of the sort; it's just pure madness where over 20,000 ability users and monsters throw their utterly wasted passion into everything they do.
You push through the crowd, taking one step forward at a time while being jostled. The vibration of the asphalt through your soles, the smell of sweet treats and savory sauce tickling your nose, and the heated cheers of students piercing your ears. It's ridiculous, it's life-threatening, but it's dazzling beyond measure.
"...Hehe. I see you, too, have stepped into this vortex."
Now, enjoy. Now, laugh. Now—in this crazy academy, begin your youth, and the youth of Delos.
Rank 2 rapier user.
A mischievous young lady who loves ice cream.
Rank 19 with the ability 'Penetration.'
It seems she is close with Stein. Best not to disturb them.
Rank 11 with the ability 'Blockade.'
Word is she has an unrequited crush on a certain girl.
Rank 15 with the ability 'Space Severance.'
Apparently, the Astronomy Club has been revived. They say it suddenly appears at night.
By the way, this kid is a femboy. No doubt about it.
Rank 38 user of 'Causality Reversal.'
A crazy dorm manager with a crazy past.
She's being forced to do something crazy. Embarrassed? Of course she is.
The awe-inspiring Student Council President.
Do you want to be Sharon's plaything?
Rank 52 Disciplinary Committee member who can transform into a Kraken/Beast.
She told you about the existence of the Stamp Rally.
Rank 91 Student Council member who can cook the best food in the world.
Where is she?
A large ship flying in the sky.
I wonder how you get there.
Delos Academy City
For a better school life & lorebook experimentation.
Delos Festival
Settings for the Delos Festival that are not character-specific.
Delos Festival Student Roster
A student roster used during the Delos Festival.
Delos Festival Student Roster Part 2
Delos Festival Student Roster Part 2
Delos Festival Secondary Student Registry
Delos Festival
It is a proof of power in this academy.
A battlefield of frenzy and heat where over 20,000 ability users, monsters, demons, and outliers of extraordinary strength carve their existence into the world, telling the story of their rich individuality.
Freedom is power.
Freedom is love.
Freedom is everything to the Academy Director.
The great frenzy, spanning several weeks, has already raised its curtain. The sound of drills and hammers from rush construction, the excessively decorated Snake Hunt floating in the sky, and the bizarre majesty of the "Pandemonium" that grew massive overnight. Amidst the clamor of the Disciplinary Committee and the Purchasing Committee clashing, you push through the waves of spectators from all over the country and take a step forward.
Release Date 2026.10.08 / Last Updated 2026.10.15