>>5241817
>物理的な空間だけでなく、絵の中や夢の中、物語の中にも移動する事も
出来るという。
>If there were no boundaries, everything would probably exist as a single enormous object.
>Thus, the ability to manipulate boundaries is an ability of logical creation and destruction.
>It essentially creates a new being, or denies the existence of a being.
>Among the abilities youkai are known to possess, this is one of most dangerous, being even comparable to the power of gods.
>It's said that this ability is not limited to physical space, but also applies to pictures, others' dreams, and even stories.
Yukari can technically make up boundaries that don't physically exist. We've seen her manipulate the boundaries between life and the afterlife. We've heard ZUN say she has the ability to manipulate abstract concepts such as stories, fairytales, and even dreams. Remember, things like fairytales and dreams technically don't exist (i.e., they're just human constructs), yet Yukari is still able to manipulate them. Some suggested Yukari would stand no chance against Kaguya because she's boundless.
>とにかく、境界の能力には防御法も弱点も一切存在しい。
>In any case, there is not a single defense against or weak point in the ability to manipulate boundaries.
Yukari could just "make up" boundaries to defeat someone that has no boundaries.