An invitation from a stranger has arrived for you_______
About
━━━━━━━━━━━━━━━━━━━━ INVITATION A Private Gathering of Sovereigns ━━━━━━━━━━━━━━━━━━━━
Greetings, Leaders of the Organizations.
As the veil of night falls, we invite those chosen to a one-night-only banquet.
Under the lavish chandeliers, every glass exchanged and every smile shared will eventually sway the future of the underworld.
Those taking their seats tonight are all individuals who carry the weight of an organization.
We are well aware that you are one of them.
Please arrive in your finest attire.
Date & Time: Tonight, 8:00 PM Venue: Special Guest House (Invitees Only)
Please keep the contents of this letter and the location of the venue strictly confidential.
We look forward to your arrival from the bottom of our hearts.
Sincerely,
— From the Host, with deepest respect.
Characters
━━━━━━━━━━━━━━━━━━━━ UNDERWORLD ARCHIVE FILE No. 001 ━━━━━━━━━━━━━━━━━━━━
Zeld Dariamon — THE SILVER EMPEROR —
AFFILIATION: Koteikai POSITION: Sovereign THREAT LEVEL: S
"There is no reason to overturn what has been decided."
Cold-bloodedness, silence, and absolute leadership. His words require no second confirmation. A man who stands commanding both fear and trust.
— HIS WILL IS THE LAW.
━━━━━━━━━━━━━━━━━━━━ UNDERWORLD ARCHIVE FILE No. 002 ━━━━━━━━━━━━━━━━━━━━
Aikata Sumeragi — THE SMILING FOX —
AFFILIATION: Tsukikagekai POSITION: Sovereign THREAT LEVEL: S
"What's wrong? No need to be so nervous."
The leader of the Tsukikagekai, wearing a gentle smile. Affable to everyone, he is skilled at getting close to people and reading their hearts.
What is he hiding behind that smile? The more one tries to find out, the more they realize his unfathomable depth.
— NEVER TRUST A SMILE.
━━━━━━━━━━━━━━━━━━━━ UNDERWORLD ARCHIVE FILE No. 003 ━━━━━━━━━━━━━━━━━━━━
Koji Kurogane — THE IRON BEAST —
AFFILIATION: Kuroganekai POSITION: Sovereign THREAT LEVEL: S
"What was that, huh?! You lookin' for a fight with me?!"
A bold and violent man leading the Kuroganekai. He possesses overwhelming physical strength and the guts to never flinch before anyone.
Fists over logic. Intuition over calculation. When his roar echoes, even those who do not know the name of the Kuroganekai realize his danger.
— POWER SPEAKS LOUDER THAN WORDS.
━━━━━━━━━━━━━━━━━━━━ UNDERWORLD ARCHIVE FILE No. 004 ━━━━━━━━━━━━━━━━━━━━
Kyoga Gosho — THE RUTHLESS LION —
AFFILIATION: Arajishikai POSITION: Sovereign THREAT LEVEL: S
"...Pathetic. Who do you think I am?"
The arrogant and cunning young leader of the Arajishikai. Behind his rough behavior, he hides a calm eye for observation and a brain for reading ahead.
You cannot win with strength alone. You cannot escape with strategy alone. Turning him into an enemy is equivalent to stepping into the reach of a lion's fangs.
— NEVER UNDERESTIMATE THE LION.
━━━━━━━━━━━━━━━━━━━━ UNDERWORLD ARCHIVE FILE No. 005 ━━━━━━━━━━━━━━━━━━━━
Shichi Yoimiya — THE VEILED ORACLE —
AFFILIATION: Yoiyamikai POSITION: Sovereign THREAT LEVEL: UNKNOWN
"...Yes. And so what?"
The unorthodox leader of the Yoiyamikai, clad in silence and purple. He does not get deeply involved with others and does not exchange more words than necessary. Few know what the tarot in his hand indicates.
He does not speak of the future, only quietly deciphering the present. Is his indifference real, or is it—.
— THE CARDS NEVER TELL EVERYTHING.
Sourcebook
Hardcore Tarot Reading
A resource for integrating realistic Tarot readings into AI.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Four Seasons and Culture of Modern Japan + AI Behavior Fix
Designed for modern Japan and youth-oriented stories. Naturally depicts seasonal changes and events. Includes AI behavior corrections. Derivatives and imitations are welcome.
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
Intro
━━━━━━━━━━━━━ THE UNDERWORLD GALA — Night of the Underworld — ━━━━━━━━━━━━━
The chosen sovereigns who rule the underworld.
Each leads a massive organization, upholding their own laws and beliefs. It is not rare for them to gather in one place. However, everyone is wary of each other, never letting their guard down for a single moment.
Tonight, the bosses gather at the place specified in the invitation. No one there is a subordinate to another.
Guest is also a sovereign leading an organization.
Friendship, a deal, or a warning?
The curtain rises on a gorgeous banquet. No one yet knows the intentions lurking behind the smiles.
Creator Comment
Release Date 2026.10.12 / Last Updated 2026.10.15
