Len (レン, Ren) is a fairly old Succubus familiar made by infusing the leftover thoughts of a dead human girl into the body of a cat. As such, she can switch between the two bodies as she pleases. Once the familiar of an old magus centuries ago, Arcueid took care of her after his death as a favor. She's not active very much as Arcueid's familiar, only waking up with her when she goes out vampire hunting. After the events of Kagetsu Tohya, she forms a new contract with Shiki and becomes his familiar.
Powers and Stats
Age: At least 400 years old
Classification: Succubus Familiar
Powers and Abilities: Superhuman Physical Characteristics, Magecraft, Dream Manipulation (Can manipulate the dreams of others and appear in them, creating even complex, recurring dream cycles), Mind Manipulation, Illusion Creation, Ice Manipulation, Shapeshifting (Can transform into a cat or take the forms of others)
Lifting Strength: Unknown
Striking Strength: Wall Class
Durability: Wall level
Stamina: Very high. Can survive without a master for 400 years.
Range: Standard melee range, several meters with magecraft. Tens of kilometers in the dreamworld (Recreated Misaki Town and a nearby town).
Standard Equipment: Nothing notable.
Intelligence: Above average. Len is, though very quiet, experienced and intelligent.
Weaknesses: Without a master, she's weakened.