There was this Manga that I forgot to bookmark and that I totally forgot about, I'll explain what I think the main points of it were. 355d1z

1. A school of some sort made for people who were interested in Manga and other stuff like that.
2. I think the heaster was also a student in her own school
3. The students could cosplay whenever they wanted.
4. Either the Male protagonist was good as drawing or terrible.
   These are thing I sort of about it, some might be apart of the story some might not. Please help me find this manga's name It's giving me a headache that I can't find out the name of it.

Ikebukuro Hatsu, Zensekai Yuki!?

Yup that's it! Thank you! Whenever I googled trying to look for it, all I got were questions about actual manga schools.

You're welcome.
I searched here using the cosplay category and school life genre. =)