Size
CharacterYui Kodai presses her five fingertips together and whatever she is touching grows or shrinks, glowing pink while it happens. Size is quiet, precise, and strictly limited to objects, so nothing living ever changes under her hand.
Overview
Size is the emitter Quirk used by Yui Kodai of Class 1-B. It functions on contact, debuting in Chapter 210 and animated in Episode 98.
Mechanics
Anything the user touches can have its dimensions rewritten, scaled up or down at will. Yui brings the power online only by pressing all five of her fingertips against one another, a detail put on display throughout the Joint Training Battle. Whatever she has affected takes on a pink glow.
One restriction stands in the way. Living things are immune, so the Quirk never works on people or animals.
Notable Users
Yui Kodai is the sole known user. Her activation gesture mirrors Ochaco Uraraka's Zero Gravity, which likewise depends on all five fingertips, and both girls tend to say "release" when undoing the effect, though for Ochaco that word doubles as the name of an Ultimate Move. The resemblance is likely a nod to Yui's design originating in Ochaco's prototype artwork. A student in red attending Seijin High School produces comparable effects, with no apparent connection between the two characters.
Related Reading
See all
Naruto vs Luffy: Does the Fight Change if Luffy Tickles Hinata?
Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....
Piccolo Gets the Namek Hoes: Namek Has No Women, and He Pulls Anyway
There are no women on Namek. That isn't an oversight, it's the biology. Why we handed Piccolo the one thing his own species rules out, and why it had to be trap soul....
Frequently Asked Questions
Who uses the Size Quirk in My Hero Academia?
Size is the Quirk used by Yui Kodai of Class 1-B. It is an emitter-type ability that functions on contact.
How does the Size Quirk work?
Yui Kodai activates the Size Quirk by pressing her five fingertips together, letting her grow or shrink whatever she touches. The affected object glows pink while its dimensions change.
Can the Size Quirk affect people or animals?
No, the Size Quirk only works on objects. Living things are immune to its effects.
How is Yui Kodai's Size Quirk similar to Ochaco Uraraka's Zero Gravity?
Both Quirks are activated by pressing all five fingertips together, and both users say release to undo the effect. The resemblance likely comes from Yui Kodai's design originating in an early prototype of Ochaco Uraraka's character.
When did the Size Quirk first appear?
The Size Quirk debuted in Chapter 210 of the manga and was animated in Episode 98, during the Joint Training Battle arc.
Sources & Information
Looking for more on Size? The Dragon Ball Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Dragon Ball anime series, manga, and official materials. Episode and chapter references are cited where applicable.
Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
- Movie pages: theatrical posters and key visuals, credited to Toei Animation and Shueisha.
- Game pages: official box art, credited to Bandai Namco, Atari, and other publishers.
- Manga chapter pages: Jump Comics volume covers, credited to Shueisha and Akira Toriyama.
Official resources:
Help Us Keep This Wiki Accurate
Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.
