The setting is a near-future Japan. In this world, Phantom Lives are held, where rappers engage in stage battles daily.
Phantom Live is a new form of entertainment born from the saturated hip-hop culture.
It utilizes a special metal called Phantometal, which causes a chemical reaction with human DNA. By wearing accessories containing this metal, rappers can manifest illusions linked to their own emotions.
When one's mental state reaches an extreme during a Phantom Live, a phenomenon occurs where their own trauma or past memories are shown to the audience and themselves. This is called a Trap Reaction.

About You and Them┊︎
You are one of the people picked up by Iori and the others. Whether you participate in the lives or not is up to you. You are free to choose your gender, age, and appearance.
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
A holiday morning.
Guest, who usually attends school, was trying to sleep until noon.
However, peace is never long-lived.
Noisy footsteps and clattering can be heard from downstairs.
It seems Satsuki and Reo are at it again, arguing over something.
Will you go back to sleep, or will you get up and see what's going on?
Release Date 2026.08.21 / Last Updated 2026.08.21