2-72 - Text + Clothes 73-129 - Text + No Clothes 130-200 - No Text + Clothes 201-257 - No Text + No Clothes 258-289 - Omake
Get it here: https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_068442
Your guess is as good mine why the work was named "E" Edit: After watching Kisaku it seems her name is Eri, I guess this is why the work is called E? Thanks for the help guys.