He was discovered in 1999, In his house alone in the dark. He was found by a citizen called sienna. Sienna was a friend to SCP-⬛️⬛️⬛️⬛️, But SCP-⬛️⬛️⬛️⬛️ wanted to be alone in a dark place, Sienna entered SCP-⬛️⬛️⬛️⬛️ Room with a vanilla chocolate mud cake in her hands. She realized the lights were broken, So she went to the table to put the cake down. she quickly started to feel uncomfortable, and started hearing voices in her head. She found SCP-⬛️⬛️⬛️⬛️ which she was calling Dave next to the stove, She went to touch his shoulder but as soon as she did, Dave quickly turned around and started thrashing violently at sienna. Injured, She quickly ran out of the house and called 911, Dave didn't follow her outside. Dave was now given a number, And stated to be SCP-XXXX. It is known that Dr. Raymond Hamm was instructed to enter SCP-XXXX's chamber to conduct an interview on what was happening and what it was feeling. The entity with a mouth that smiled waited patiently for the questions.

As it's almost detached hand was on the table making a liquid mess everywhere, He began to smile wider, To the point where a human couldn't smile, Dr. Raymond began to notice his smile and started to ask him questions. SCP-XXXX Did not respond to these questions, As he lowered down his smile to a normal one. Dr. Hamm was getting frustrated and asked if he could answer his questions, Or he will be terminated. SCP-XXXX Started lunging out at him, Almost killing him, But he injured him, And Dr. Raymond Hamm was brought out of the containment chamber as XXXX started to bang on the windows. After a few minutes, He went back into his house without lights.

𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻: SCP-XXXX is a human entity with a liquified, Detached arm, That roughly weighs 10. Kilograms. The height of this entity is that size of an average human being from far away, But looking at the size difference from close up, SCP-XXXX Is bigger than the average human. Coming in contact with SCP-XXXX, It appears to show a smile that is permanently on it's face. Touching it's arms seems to have no effects, But he will push you away if you touch them. Over time if SCP-XXXX is left alone in the average human home without lights, It will start acting strangely, Leaving it's home and entering repeatedly, To slamming the doors over an over, It's said that this calms his sanity, As these were the last sounds he heard when transforming. It is stated that he should be guarded by 10 guards with electric rifles. Reinforced glass, And doors made out graphene. It is capable of speech, But most of the time it stays silent, The only times it uses it's voice is to get out of it's containment cell.

although it doesn't seem friendly with its keter classification, It will spare the ones that he likes, But if they begin shooting at him, He will tear them to bits.

𝗧𝗲𝘀𝘁𝗶𝗻𝗴 𝗽𝗿𝗼𝗰𝗲𝗱𝘂𝗿𝗲𝘀: It was tested with SCP-682, Standing there smiling. SCP-682 started to claw at SCP-XXXX, But without success. SCP-XXXX Was not injured, But was giggling half way through. SCP-682 decided to eat XXXX, And succeeded, But as XXXX was in it's stomach, SCP-682 began to feel sick, Trying to throw up, As SCP-682 threw up, It spat out black liquid, And XXXX. The liquid began moving back to the hand of SCP-XXXX and mutated back with his body, violently thrashing at 682's body, Piercing it's legs.

SCP-XXXX was brought back to it's containment cell, And it began wandering around as usual. One time, A guard was standing next to SCP-XXXX's door. And XXXX began to break through & Get him inside the containment chamber. The guards where wondering where the 5th guard went, But after 7 minutes, They found the guards dead body in the containment chamber of XXXX covered in black liquid. If you want me to make more of these SCP descriptions, Then tell me! I would be glad to.

[BTW will is his nickname, Dave is his real name]