How To Delete blockquote completely

Looks like it’s in the page content, just go in and take it out.

But it’s in every page content. How do I take it out from every page

What are other pages ? can you link to them here ? I could only see front page.

Did you make any changes to theme file at all?

Is there any plugin that could put something into content area ?

it’s on every post page, https://gasakashi.com/one-ok-rock-a-new-one-for-all-all-for-the-new-one-lyrics-english-translation/, or any page at that

what theme are you using? maybe check content.php?

Can you replicate the problem using the default Twenty Twelve theme with all plugins deactivated?