Kanji/Kana 無限
 Rōmaji Mugen
 Also Known As
 Classification Unique
 User(s) Merlin
 Weapon Aldan
Media Debut
 Manga Chapter 191

Infinity無限 (むげん)  Mugen」 is a unique power possessed by the Boar's Sin of Gluttony, Merlin.


Merlin's power of Infinity is a unique and incredibly powerful ability that allows her to keep her spells active until she herself chooses to dispel them. No matter how powerful the spell, Merlin only needs to cast it once for her power to take effect.

It is extremely versatile and can be used in numerous ways to make her spells everlasting, including freezing others in ice eternally, causing flames to burn endlessly, or even stopping her own time. It allows her to escape the effects of powers which alter her time or her age, such as Grayroad's commandment.[1]

Its effects are so outside the norm of most magic, that it's been called "unfair" and Merlin accused of "cheating" for possessing it.[2]


  1. Nanatsu no Taizai Manga: Chapter 191.
  2. Nanatsu no Taizai Manga: Chapter 190.