Itsuki was once a felon demon who was hunted down by Shinobu Sensui during the latter's spirit detective days. Sensui spared Itsuki after a brief talk and they eventually became friends, Itsuki even becoming Sensui's partner. After a traumatic experience where Sensui saw the true depravity of human nature, Itsuki went along with his plans to destroy the human race and open a large portal between the human & demon realms.
Powers and Stats
Tier: At least 8-A
Origin: Yu Yu Hakusho
Classification: Demon, Member of the Sensui Seven
Powers and Abilities: Superhuman Physical Characteristics, Telekinesis, Spatial Manipulation (Can create and manipulate pocket dimensions to trap people in, also has control of a creature called Uraotoko which can do the same), Portal Creation (Can move about from location to location and even between dimensions using portals of his own creation), Summoning (Can summon inter-dimensional demon hands to aid himself or his allies, can also summon a creature called Uraotoko which itself has spatial/dimension related powers)
Speed: High Hypersonic (Via power-scaling from Dark Tournament Kurama)
Lifting Strength: At least Class K
Striking Strength: At least Multi-City Block Class
Durability: At least Multi-City Block level (Probably about as durable as the likes of Dark Tournament Kurama. This is proven by the fact that he survived, albeit was badly injured, an attack from an emotionally charged Kazuma Kuwabara, who was around middle to upper B-class at the time [before his exposure to the demon world and power increase to upper A-class])
Stamina: Very high (comparable and even weaker demons can continue fighting with injuries that would be fatal to normal physically fit humans)
Range: Standard melee range, tens of meters with telekinesis, inter-dimensional with shadow hands and portals.
Standard Equipment: None notable
Intelligence: Somewhat high.
Weaknesses: None notable
- Dimensional Travel: Itsuki possesses the shadow hands, a powerful demon ability unique to Yamanate, as Kurama calls him in the anime, that allows him to travel between dimensions and to create dimensional portals. It also allows him to control demons from different dimensions, such as in the fight between Yusuke and Sensui. These shadow hands are also why he is nicknamed the Dark Night Stroker. In some video games he can actually strike people with the shadow hands, as well as heal himself.
- Gatekeeper: Itsuki guards the inner depths of Demon World. Meaning he could trap someone in the depths Demon World for how long he wants.
- Uraotoko: This vaguely-humanoid creature is Itsuki's pet . Given all the debris seen within it, it can be inferred that this creature has existed for a long time. This creature is able to capture other humans, demons or any other being.
- Telekinesis: Itsuki briefly demonstrated this ability when he, apparently through psychic means, mentally lifted a late Sensui into mid-air; ceasing when he was able to cradle the spirit detective's body in bridal position.