Gigantification is a Quirk used by Yu Takeyama.


This Quirk allows Mt. Lady to drastically increase her size into that of a giant. While gigantified, Mt. Lady can easily subdue smaller targets and fight similarly-sized foes on equal footing. The extra mass also grants her strength to destroy buildings and other structures with ease.

She can only grow up to 2062 centimeters and cannot change her height otherwise. Although she has some control over her Quirk, if angered, she can accidentally activate it.

Due to her massive size after transforming, she needs a minimum space of two lanes of street to move properly, as such this Quirk is not useful in small or confined spaces.[1] Her actions also tend to accidentally result in massive property damage, which causes her financial trouble.

Named Techniques

  • Canyon Cannon (キャニオンカノン Kyanion Kanon?): While in her giant form, Yu performs a flying kick.[2]
  • Titan Cliff (タイタンクリフ Taitan Kurifu?): Yu grows into her giant form and headbutts the enemy. She uses this move to intercept Atsuhiro Sako.[3]


  1. My Hero Academia Manga: Chapter 1
  2. My Hero Academia Manga: Chapter 1, Page 6
  3. My Hero Academia Manga: Chapter 91, Page 6

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