A cultist leader? Maybe a demon himself? No, In fact it is SCP 666-014. Otherwise known as Tsukyomi or Tokoyami is a humanoid SCP that has cultish tendencies. Before capture it could be found doing multiple demon rituals to summon demonic entities. It was the leader of many cults in its time. The only demon it hasn't tried to summon since the first time would be SCP 666-X13. The Rat demon.

When it was summoning the rat demon, It had a feeling much more worse than all of the other demons summoned. Infact, 10 Times more menacing than the king of demons. If the letter X is even mention to Tsukoyomi, it will go in a fit of fear not unlike that of a baby crow when predators are near.

SCP 666-014 has many other weird quirks about it other than its cults. It is a humanoid being with a bird head usually identified as a crow or raven. It can speak both bird, english, and japanese. And, it has a demon attachment always with it 100% of the time. The demon attachment is said to be there all of the time since it was born.

The demon attachment was Named Dark shadow by SCP 666-014. And has never left him since. It has enhanced strength, speed, and agility. Plus the ability to fly. However it can only manifest in darkness or half shade, its weakness is the sun or light itself. Wherever shadows are, Dark Shadow is sure to be found if Tokoyami is around.

Dark Shadow and Tokoyami have been seen to make a different form. Named Abyssal Tsukoyomi by 666-014. That is all we know about SCP 666-014.

SCP Officer Tsukauchi Naomasa