The person who actually arranged this incident was...the victim, Nagito Komeada. He kept a specific item inside his cottage that he needed for his plan. Monokuma's Special Poison, which he brought with him from the Octagon.

Using the gloves and gas mask that he got from he military base... Nagito swapped the contents of a fire grenade he took from the Plushie Factory break room with that poison. When he did that, a specific item was left as evidence: the blue aluminum seal on the grenade.

With that, Nagito finished making the poisoned fire grenade, took it with him to the factory... ...and put it back with the rest of the grenades in the break room.

The next morning, Nagito appeared before us and declared that he hid a bomb somewhere... While we were looking for the bomb, that's when Nagito headed over to the goods warehouse. In order to set up a fire, Nagito arranged the Monokuma panels in a line going from the door... ...to the curtain, and placed an oil lighter in front of it. From there, Nagito set his insane plan in motion.

First, he hung the spear that he took from Nezumi Castle from the ceiling girder by its cord...then he tied his arms and legs at the back of the warehouse with rope. However, he burnt off the rope on his right arm beforehand.

In doing so, he made sure that only his right hand was free while his remaining arm and legs were tied up... As he gripped the tip of the rope hanging over the ceiling girder with his left hand... He laid down face-up, just beneath the dangling spear.

But this was just the beginning of Nagito's plan, and then...he did something no one could've predicted. First, he covered his mouth with duct tape, and after making sure he was unable to scream... He stabbed himself with the knife multiple times in his left arm and in both of his thighs.

Finally... He propped the knife on the plushie, and slammed his right hand onto the blade! He didn't just want us to think he was tied up, he also wanted us to think he's been tortured... Through all this, Nagito never let go of the spear. His plan still wasn't over...In fact, it was just about to begin.

Meanwhile, we finally arrived at the plushie factory and found Nagito's message... After seeing his message, we instantly made our way to the warehouse... But that was part of Nagito's plan. We opened the door to the warehouse, which inadvertently started the Monokuma panel domino effect...

The panels fell, one after another, until they reached the lighter, tipped it over, and ignited the curtain. Shocked by the sudden fire, we rushed to the factory's break room to obtain some fire extinguishing grenades.

We then aimed for the fire's origin point, which was the curtain, and unloaded the entire supply. It never occurred to us that one of those grenades was the poisoned grenade that Nagito had prepared... The poison sank to the floor, instantly vaporizing due to the intense heat, and spread everywhere... The poison gas quickly drifted to the curtain at the back of the warehouse, where Nagito was. Also, Monokuma's poison has a unique quality in which it becomes heavier than air when vaporized. That poison gas completely surrounded the area where Nagito lay face-up on the floor.

There, Nagito inhaled the poison, and if it didn't instantly kill him, he certainly lost consciousness... Which caused him to let go of the rope in his left hand, and the falling spear plunged into his stomach. ...This is all the information related to Nagito's plan. His true intention was to set one of us up as the killer... At this time, we still don't know who the killer is... Because the killer wasn't aware they killed someone. Try as we might, we cannot reach that truth... That was Nagito's trap.

In conclusion, the fact that we can't determine the killer's identity...