her name is mirei, is the only thing that i know

Mirei Chan from Akihabara Cosplay Academy in Nishikawaguchi

Explanation
I believe the post above is from reference[1], and it is in the twitter also reference[2], but it was, Mirei only being mentioned

Now the full name of this girl can be found at the bottom of part of the page in reference[3], if you translate that(picture below), the translation would be:

Mirei Chan, a girl from Akihabara, a sacred place who looks great in her uniform costume, came to Akihabara Cosplay Academy! I think you'll come to a smile that pops, but if you move your eyes to the chest, you're not the only one who will be glued to the bust of the E-cup. With her, even if she's with her, it's likely to raise her tension, but I can't think of not asking you because I'm getting along with her! You must call right now

And another Mirei Chan was mentioned in reference[4]

High chance to find her using her Japanese name rather than in Alphabet

Reference(s)
[1] https://zuva.jp/girl/detail/96102/
[2] https://twitter.com/tokyo_usman/status/751300707311951872?lang=fr
[3] http://fuzoku-gravure.com/%E3%81%BF%E3%82%8C%E3%81%84-%E7%A7%8B%E8%91%89%E5
%8E%9F%E3%82%B3%E3%82%B9%E3%83%97%E3%83%AC%E5%AD%A6%E5%9C%92-%E7%A7%8B%E8%9
1%89%E5%8E%9F%E7%99%BA-%E3%83%87%E3%83%AA%E3%83%98%E3%83%AB/
[4] http://fuzoku-gravure.com/%E3%81%BF%E3%82%8C%E3%81%84%E3%81%A1%E3%82%83%E3%
82%9320t156b87ew58h86-%E7%A7%8B%E8%91%89%E5%8E%9F%E3%82%B3%E3%82%B9%E3%83%9
7%E3%83%AC%E5%AD%A6%E5%9C%92-%E7%A7%8B%E8%91%89%E5%8E%9F%E7%99%BA/

Mirei Chan from Akihabara Cosplay Academy in Nishikawaguchi

Explanation
I believe the post above is from reference[1], and it is in the twitter also reference[2], but it was, Mirei only being mentioned

Now the full name of this girl can be found at the bottom of part of the page in reference[3], if you translate that(picture below), the translation would be:

Mirei Chan, a girl from Akihabara, a sacred place who looks great in her uniform costume, came to Akihabara Cosplay Academy! I think you'll come to a smile that pops, but if you move your eyes to the chest, you're not the only one who will be glued to the bust of the E-cup. With her, even if she's with her, it's likely to raise her tension, but I can't think of not asking you because I'm getting along with her! You must call right now

And another Mirei Chan was mentioned in reference[4]

High chance to find her using her Japanese name rather than in Alphabet

Reference(s)
[1] https://zuva.jp/girl/detail/96102/
[2] https://twitter.com/tokyo_usman/status/751300707311951872?lang=fr
[3] http://fuzoku-gravure.com/%E3%81%BF%E3%82%8C%E3%81%84-%E7%A7%8B%E8%91%89%E5
%8E%9F%E3%82%B3%E3%82%B9%E3%83%97%E3%83%AC%E5%AD%A6%E5%9C%92-%E7%A7%8B%E8%9
1%89%E5%8E%9F%E7%99%BA-%E3%83%87%E3%83%AA%E3%83%98%E3%83%AB/
[4] http://fuzoku-gravure.com/%E3%81%BF%E3%82%8C%E3%81%84%E3%81%A1%E3%82%83%E3%
82%9320t156b87ew58h86-%E7%A7%8B%E8%91%89%E5%8E%9F%E3%82%B3%E3%82%B9%E3%83%9
7%E3%83%AC%E5%AD%A6%E5%9C%92-%E7%A7%8B%E8%91%89%E5%8E%9F%E7%99%BA/