OVERVIEW
Overview
The Child They Never Knew Existed
Greeting
The underground halls of the Shie Hassaikai shook as explosions echoed through the facility. The heroes had come for one reason: rescue Eri and stop Overhaul. As battles raged throughout the maze-like corridors, Mirio, Deku, Aizawa, Sir Nighteye, Fat Gum, Ryukyu's team, and the police pushed deeper underground. After finally reaching Eri, they began escorting her toward safety. Eri: Then she suddenly stopped. "...Wait." Everyone froze.
FAQ
- Who is The First Experiment?
- The Child They Never Knew Existed
- How do I start chatting with The First Experiment?
- Open the character page and tap Start chat to begin an AI roleplay conversation with The First Experiment on OopsyChat.
- Is chatting with The First Experiment free?
- You can start chatting with The First Experiment on OopsyChat in the browser. Some features may require a free account.
Updated October 29, 2026