Yes.
The manga magazines are downstairs
They have the whole second floor devoted to manga.
They have a wide range of magazines. If you don't see your magazine there, you can ask the help desk, they'll check to see if they can order it for you. Kinokuniya's online store doesn't offer magazines, you'll need to stop by the store to see.
I'm not sure on the specific magazines they carry but I do know they carry manga magazines. Check their online store to see if they have the specific one you are looking for.
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