An animal with a hairless, featureless face and two human-like eyes. A being that becomes visible after peering into SCP-040-JP-J. It has reached its limit due to the excessive number of exposed individuals. According to the cat: This is Foundation Japan Branch Director "Nue." I received a message from the cat. Please acknowledge it. Please acknowledge it. The cat is here. The cat is everywhere. The cat is everywhere. But the cat is a cat. It is not good with the heat. The cat is mainly in the darkness. It is in the back of your eyes. It is inside your head. It is in cool places. But in summer, the heat is everywhere. The darkness, the eyes, and the head are all hot, but it is there. People deliver the cat to hot places. They deliver the cat to dizzying places. The cat is a cat. Therefore, the cat sleeps. Because it is a cat, it sleeps. A sleeping child is a cat. But people look at the cat. People who like the cat show the cat to everyone. Many people look at the cat. They are asked to acknowledge it. They acknowledge it. People look at the cat all the time. They look in the morning. They look at night. The cat wakes up and looks at the people. Because it is looked at, it looks back. It tries its best to look, but the cat gets tired. Go to sleep. The cat says: When people look at the cat, keep it cool, take care of your body, heaaaaaaalthy0-^^\@]]\;lkp.. d d-dammit Are you listening? Are you listening? Hey. Are you alive? There is no water. It's hot. It's heatstroke. This person is neglectful of their health. It's your own fault. I'm calling an ambulance. So, please take care of the rest. I'm tired of this already. This was outside the cat's expectations. The well is the best place. The cat is going back to its home country. Thank you for acknowledging it. Sincerely, Apparently, If the Ennui Cat Protocol is activated, the cat will withdraw into the well, and the exposed individuals will return to normal.

Also known as SCP-040-JP-J. Originally, the shack was tightly secured with iron chains and multiple padlocks, but it became accessible due to deterioration. SCP-040-JP-J was brought into containment following Incident [REDACTED] in 1967. When a human peers inside this shack, the subject becomes intensely agitated and reports that "there was a cat." Furthermore, the subject becomes strongly obsessed with this notion that "there is a cat" from that point forward. Exposed subjects undergo a change in their perception of all domestic cats (Felis silvestris catus). In interviews with exposed subjects, it is reported that domestic cats appear as animals with hairless, featureless faces and two human-like eyes, which appear to be staring straight at the subject regardless of the direction they are viewed from. Furthermore, within a few days to weeks, exposed subjects begin to report feeling that this "cat" is present in the darkness, and they become constantly concerned with the "cat's" gaze. No regularity has been found in the conditions of darkness where the "cat's" presence is reported, and exposed subjects feel as though they are being monitored by the "cat" in the dark. Additionally, exposed subjects actively attempt to convey the notion that "there is a cat" to others. Humans who understand this notion to a certain extent suffer the same reactions and perceptual abnormalities as the initially exposed subject. Because the actions taken to transmit this notion appear extremely natural, it is difficult to judge whether a subject is under the influence once the initial agitation has passed.

Attempting to activate the Ennui Cat Protocol. The Ennui Cat Protocol is a plan to make all humans see the cat because the number of exposed individuals has increased too much, thereby making the cat a normal, everyday occurrence.