This doujinshi had pages with a larger size than the standard.

Parodied series are Marmalade Boy, Wedding Peach and I'll Make a Habit of It/Chou Kuse ni Narisou.

Girl in the cover is Miki Koishikawa from Marmalade Boy and the one in the backcover is Nagisa Shiratori, from I'll Make a Habit of It. By coincidence, both series were fansubbed by the late Tomodachi anime, in the end of the 97's. Marmalade Boy they finished, but they only did 16 episodes of Chou Kuse ni Narisou.

I literally can't tell anyone apart from anyone else from that era of Shojo manga.

Base +13, Gabygabycandid +6

Doujinshi.org - https://www.doujinshi.org/book/315236/

Suruga-ya - http://www.suruga-ya.jp/kaitori_detail/ZHOA58644

Base +40, TheGreyPanther +50, Gabygabycandid +6