Talk:Yui Kodai/@comment-27218075-20160517012847/@comment-25775601-20160517022253

Her quirk makes herself larger or smaller. Her quirk is shown in Chapter 29 when she was smaller than Manga. She can also make herself larger in Chapter 73 when she grew herself larger.

If this isn't clear enough, then I can't help you.

(I'm tired of these misunderstandings.)