I don't know what you're saying-Mimi
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Sigma needs its music comment, production information, and/or staff comments translated.

Sigma's history can be found here.

シグマ Shiguma


Sigma 2P

Sigma IconSigma 2P Icon
Birthplace Sigma Temple
Birthdate Unknown

(July 23rd)

Gender Female
Race Goddess/Rufina/Memeplex
Eye Color Sky blue
Hair Color Yellow to sky blue
Hobby Playing chess
Relative(s) Lien (Descendant)

Matin (Descendant)
Nox (Descendant)

Likes Nectar
Dislikes Foolish robbers
First Appearance pop'n music 15 ADVENTURE
Other Appearance(s) None.
Theme(s) IDM
Designer(s) shio

Sigma is one of the characters from Pop'n Music 15 ADVENTURE, and one of the primary characters from the Zektbach franchise.


Master of the shining temple. A law enforcer.
If you invoke her anger, you will receive divine judgement.
..How scary.

Sigma is a memeplex that the rural people combined.


Sigma is a female goddess figure with keen, sky blue eyes. Her hair is formed into a freakish appearance and animates like an electric spark, and carries a yellow color with a sky blue change, continuously moving. Sigma is shown wearing a white toga for females with a small, light blue gradient on top; underneath is her dress with the gradient from the lighter version of blue to the darker form. She have golden rings on the bottom of her breasts, and on her right shoulder. She wields a staff that blends into a lightning bolt on top with yellow to violet gradient. Sigma also wields a small, black shield and a hat with the respective colors of blue and yellow for her accents.

Sigma's 2P color palette changes her blue ombre and violet gradient from her staff to white. A light yellow gradient is found on the bottom of her toga, and her dress carries yellow, blue, purple, and magenta colors on her dress as a gradient. The shield and hat are white instead of black, as her jewel of her shield is magenta. The facial features and accents for her attire and weapon remain in their colors.

NET Self

Attack Change into a good boy (還るがよい Kaeru ga yoi?)
Damage I regret (後悔するぞ Koukaisuru zo?)
GOOD Play Mwahaha (ふははは Fuhahaha?)
BAD Play Ungh! (うぬうっ Unuu?)
WIN How silly (他愛無いな Taainaina?)
LOSE What an upcoming humilation (なんたる屈辱 Nantaru kutsujoku?)


Sigma or ∑ (uppercase sigma), originates from the Greek alphabet, which is also used for mathematical works.


  • Sigma's birthdate is identical to Beartank's, Sora Hoshino's, and Lithos's, though it is written as "unknown" in-game.
  • In MAYA tarot card, the name of her card makes reference to her loneliness in Zeta.
  • She has her own song called "Rufina Menge -Zeta-"
  • Sigma, along with A'milia and Gijiri, are the only Zektbach characters who have color panels, also the only Zektbach characters who don't have full names.




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