”An Immanity who doesn't think! A Werebeast that doesn't have keen senses! A Flugel that can't fight, a Seiren that can't attract, an Ex-Machina that doesn't learn...”
--Nyi listing off each race's vital elements.
Nýi Tilwig (ニーイ・ティルヴィルグ, nīi tiruvirugu) is an important Dwarf that appears in Volume 10 of the Light Novel. After the events of the volume, she is now accompanying Sora and Shiro on their adventures after permanently leaving her home, Harden Fell.
Nýi has the appearance of a tan young girl although, in actuality, she is 84 years old. She has messy platinum hair which gradually fades into a tint of yellow. and seems to have azure eyes with cerulean blue pupils. On her head, she has two horns and a pair of goggles. She also has a monocle and one earring. She dons a large white cloak that is tied at the bottom and is attached to a pair of suspenders with a ring around her waist and has a pair of gloves and boots. She also has many different markings around her body. Unlike other Dwarves, Nyi absolutely has no body hair making her unable to overload. According to her, she is "as smooth as a dolphin."
Nýi does not seem to be very self-confident in herself occasionally calling herself a "mole". Not even recognizing herself as a Dwarf. She explains that she has always dreamed of seeing the sky and hates her home Harden Fell in the fact that it is purely underground and has no sky. She used to have aspirations to exceed her uncle Veig in terms of crafting but eventually lost it and become the self-conscious girl she is at the beginning of the volume. After meeting Sora and Shiro, Nyi becomes more confident in herself and regains her aspirations. She has a very avant-garde way of speaking occasionally ending phrases with "...I do!"
Lack of Hair: Nýi doesn't possess any Mythril Hair, due to this, she can't overload when she uses magic. Although it was thought that she couldn't use magic at all at first it is later seen that she can boost her magic as much as possible without overloading meaning she can even use Heaven's Strike at 1%, a feat that no other Dwarf can do without instantly dying. Nýi can also create magic inscriptions based on what she sees, this is demonstrated when she creates an inscription based on the Jibril's teleportation spell, and Heaven's Strike at 1% that Jibril showed to her.
Lack of Hair: Although she can't overload, she can't amplify magic and she needs external amplification to use it. Thanks to this, she can't use her magic to create things, but she can still fix them. According to her, none of her devices have ever "succeeded" and have always blown up right in her face although Sora and Shiro count those as successes.
She can't understand the magic inscriptions of the Dwarves, so she uses the Elf system to create magic inscriptions, as remarked by Sora.
- She is known as Sir. Tilvig by clan and Nyi Tilvig at birth.
- In the Yen Press Translation, Tilvig is rather spelled as Tilvilg