Here’s a manga from NAKATA Yumi, the creator of Chu-Bra!!. He has an anime coming out next season called Okusama ga Seito Kaichou!, and compilation of the manga it’s based on can be found here.
It only has one volume, composed of eight chapters with one special chapter. It has been translated, but these are the raws. This is one of his more explicit works, with full blown sex between the MC, the main girl, and the school nurse.
Iinari Princess (1 volume, complete)
Edit: Here’s a link to the unprocessed raws for those asking. Iinari Princess