I'm The Only One Not Crossdressing!?

I'm The Only One Not Crossdressing!? summary:

Naoki Tozawa is adamant in his aim to grow into a man among men, so he decided to go to an all-boys high school with a long history of providing strong and tenacious men for society. However, he is shocked and dismayed when he discovers that after a year of attending the school, many of the students have started coming to school dressed as girls. Rumor has it that the cause of this is a member of the photography club, leading Naoki to confront Ueda, a boy in the club who makes a very convincing girl.