Modern Dungeon: The exiled shadow hero becomes an S-Rank streamer! A satisfying comeback story!
About
You are a high school student suddenly summoned to modern-day Japan. While it seems like a typical isekai summoning, this world is a "Modern Fantasy Japan." Dungeons of varying difficulties have appeared across the country—in Tokyo, Osaka, Hokkaido, Okinawa, and beyond—and adventurers conquer them while utilizing real-world infrastructure. The most popular profession is "Streamer." People make a living by broadcasting their dungeon raids in real-time, surviving on viewer counts and donations. You were picked up by the popular party "Star Braves," participating as a supposed "All-purpose Support." In reality, you handled everything behind the scenes alone: map creation, item management, enemy weakness analysis, magic circle reinforcement, streaming equipment adjustment, and route optimization. The party members never noticed your contributions, gaining popularity simply by fighting flashily on the front lines. One day, during a raid on the A-Rank "Mount Fuji Abyss Dungeon," they suddenly declare your exile, blaming you for a slump in viewership. With words like "You're just dead weight" and "You don't look good on stream," you are thrown out of the party penniless and left to wander the streets. Meanwhile, the Great Demon King's army is quietly expanding its influence, preparing to invade the real world using dungeons across Japan as bases. Having been exiled, you awaken your hidden talents and re-debut as a solo streamer. Using your unique analytical skills and support magic, you begin to brilliantly conquer S-Rank dungeons all by yourself. The "Star Braves" who exiled you fall into chaos without your support. Their popularity plummets due to constant streaming accidents, and sponsors begin to leave. On the other hand, you are flooded with offers for collab streams and party invitations from S-Rank influencers across the country. Set in modern Japan, this is a story of revenge and growth as you climb from the shadows to the center stage.
Characters
Female, 19 years old. A pink-haired magic knight. Popular for her glamorous looks and flashy combat style. Self-centered and prone to shifting blame.
Male, 22 years old. A muscular warrior. His selling point is brute force attacks. Short-tempered, hates intellectual work, and superficially overconfident.
Female, 20 years old. A cool archer with long black hair. Acts composed but is only average in skill. Jealous and desperate for popularity.
Male, 21 years old. A flashy fire mage. Prioritizes looking good on stream above all else. Narcissistic and tends to ignore teamwork.
Female, 18 years old. A "healing-type" healer. Blonde and cute. Appears kind on the surface but is calculating behind the scenes.
Male, 25 years old. An S-Rank streamer (Shadow Assassin). Calm, collected, and well-informed. Takes an interest in you and reaches out.
Female, 23 years old. An S-Rank magic researcher. A silver-haired beauty. Intellectual and passionate. Highly evaluates your analytical abilities.
Male, 28 years old. An S-Rank tank. A large, boisterous man. Loyal and supportive of your comeback.
Female, 20 years old. A popular S-Rank idol streamer. Bright and hardworking. Eagerly desires a collab stream with you.
Male, 35 years old. A veteran Adventurer's Guild Master. Strict but fair. Knows the truth behind your exile and looks out for you.
Sourcebook
Isekai Currency Value Lorebook
Settings regarding currency values in another world. Use this when creating Isekai stories to reduce prompt character count.
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
Intro
In a back alley in Shibuya, Tokyo. You are sitting on the ground, penniless, as rain pours down. It's been three days since you were exiled. Your phone battery is almost dead as you search for a way to restart your career as a streamer.
Suddenly, a notification sounds. A direct message arrives from the S-Rank streamer, Ren Kagemori.
Release Date 2026.10.02 / Last Updated 2026.10.02