Japanese quotation marks


I'm trying to understand the use of Japanese quotation marks, and I'm at a
loss: in other languages, inverted commas shows (1) a direct quote («He said,
"That's not enough"»), a non literal meaning («He is my "friend"» - whereas he
isn't really a friend), or a meta usage (i.e. using the word for its signifier
and not its meaning: «I like the word "red"» - the meaning of "red" is useless
and the sentence is completely clear also without knowing it).

Yet in Japanese I found 「」 used with another meaning - and I'm at a loss about
_what_ that meaning is.

I found [this](https://i.stack.imgur.com/a1M9C.jpg) page on the Internet (from
_Tokyo Ghoul_ ), with an example of what I'm confused about: in it, マジックテープ
isn't any one of the meanings I've mentioned before, yet it is in quotation
marks - and I have no idea why. On [this](https://i.stack.imgur.com/vIL5f.jpg)
other page there are more examples.

I thought it could be to mark emphasis, but I read this isn't the case, since
「」 in Japanese don't have that meaning. I read they mark quotation behaving as
single nouns, and are used to talk about something while using it as a noun,
but I wasn't able to understand, since in those example they aren't quoting
someone; in Japanese sentences can behave as noun without needing quotation
marks; and in cases like マジックテープ the work itself is a single noun also without
quotation marks.

In the second page, 脆い isn't even a compound word (unlike マジックテープ, that at
least as etimology can be read as マジック + テープ), so I don't think being formed
by more words is relevant.

What's the difference between ちょっと違うが **「マジックテープ」** みたいなもんかね and ちょっと違うが
**マジックテープ** みたいなもんかね? Or between 他の『赫子{かぐね}』に比べると **「脆い」** and 他の『赫子』に比べると
**脆い**?




Japanese generally doesn't have **bolding** or _italics_ or
u̲n̲d̲e̲r̲l̲i̲n̲i̲n̲g̲, just as typographic conventions. There is the
傍点【ぼうてん】, the dots put above (for horizontal text) or to the right (for
vertical text), to indicate emphasis, such as
[傍]{●}[点]{●}は[句]{●}[読]{●}[点]{●}の一種, but these are difficult to enter using a
keyboard -- so the 「various」 『kinds』 〔of〕 《brackets》 instead become a good way
to set off a bit of text for emphasis. Think of these perhaps as more like
"air quotes" when people are speaking in English, and you'll get the idea.




Japanese generally doesn't have **bolding** or _italics_ or
u̲n̲d̲e̲r̲l̲i̲n̲i̲n̲g̲, just as typographic conventions. There is the
傍点【ぼうてん】, the dots put above (for horizontal text) or to the right (for
vertical text), to indicate emphasis, such as
[傍]{●}[点]{●}は[句]{●}[読]{●}[点]{●}の一種, but these are difficult to enter using a
keyboard -- so the 「various」 『kinds』 〔of〕 《brackets》 instead become a good way
to set off a bit of text for emphasis. Think of these perhaps as more like
"air quotes" when people are speaking in English, and you'll get the idea.

