No.12 Gray Matter of Desire

Containment Number: OldWorld-12
Item Name: Gray Matter of Desire
Danger Level: Catastrophic
Containment Procedures: Provide an isolated containment space, separated from the outside world, that meets the living standards a normal human would find satisfactory. However, ensure the space is not too large; 5 square meters is sufficient. The entrance must have a two-stage filtration system, and only allow exit after confirming the host’s unique hormone levels are below the danger threshold.

Since the host is prone to pessimism and shyness, the same personnel must be dispatched every three days to interact with the host in a friendly manner. Conversations should focus on topics such as food and video games. If the host invites you to play together, please comply as much as possible. Verbal or physical harm to the host is strictly forbidden. If personnel change is required, the new person must be introduced beforehand and only fully replace the previous one once the host becomes familiar with them.

If the host enters a depressive state, increase the interaction frequency to daily. If the host becomes overly cheerful or optimistic, reduce the interaction frequency to once every 7-10 days.

If you encounter the host consuming humanoid body parts during contact, remain calm and avoid panic. Treat it as though the host is eating a snack and do not bring up the topic.

Item Description: A centipede-shaped symbiotic organism that prefers to parasitize the spinal cord of humanoid beings. It secretes a unique hormone that grants the host abnormal strength, reaction speed, and regenerative abilities. The current host is a human female with a timid and shy personality, likely already under the full control of the symbiote.

Incident Description:
The symbiote remains dormant most of the time, as long as the host's basic survival needs are met and the host is unharmed. However, the current host cannot control the hormone secretion, which once led to personnel in the containment area ingesting excessive amounts of the hormone, turning them into superhumans driven solely by their desires. This triggered a major riot. The riot ended only after the host was injured, causing the symbiote to awaken and slaughter everyone. This event earned the project the nickname "Gray Matter of Desire."