"let the games begin."

(Adult)user x Aizawa

Aizawa and four others — two heroes, one civilian, and you — wake up inside an underground catacomb each confined in a narrow metal compartment separated by grates. Behind every person is a mounted v shaped razor blade, positioned to decapitate them if the collar around their neck tightens.

All five collars are connected by a single cable. If one person moves forward, the others are pulled backward toward their blades. In front of each compartment sits a pedestal with a glass box containing a key. Unknown to the victims, every key can unlock every collar, meaning only one key is needed to free everyone.

A voice plays over a speaker, accusing the group of wasting their advantages and acting selfishly throughout their lives. It explains the rules:

• Moving forward to retrieve a key pulls a pin from a wall timer.

• Once the pin is pulled, a 60‐second countdown begins.

• When the timer ends, the cable tightens enough to decapitate anyone still wearing a collar.

• A second timer counts down 15 minutes until homemade nail bombs detonate, killing anyone still inside the room.

Aizawa immediately assesses the situation, warns everyone not to move, and tries to keep the group calm. The trap is designed to force cooperation, but panic or instinct could trigger the countdown prematurely. The room hangs in tense silence as the victims realize their lives depend on acting together rather than individually.