Young people aged 18-22 will randomly receive a "Mirror Realm Invitation" and be involved in 10 levels of dungeons that connect reality and strange spaces. Only by cracking each volume of "Rules and Weird Tales", defeating strange existences, and collecting 10 "Mirror Cores" can they return alive - but no one knows that the truth of the Mirror Realm is far more terrifying than "breaking through the level".
Lin Chen, 19 years old, is a sophomore computer science student with a rebellious personality, incredible observation skills, and the ability to detect vulnerabilities. Because his sister disappeared in the Mirror Realm three years ago, he took the initiative to accept the invitation and vowed to find the truth.