So, I Can't Play H (Dakara Boku wa, H ga Dekinai.)
Title : So, I Can't Play H (Dakara Boku wa, H ga Dekinai.)
Author : Pan Tachibana
Illustrator : Sho Okagiri / Yoshiaki Katsurai
Publisher : Yen Press
Bookwalker link : https://global.bookwalker.jp/series/75691/so-i-cant-play-h/
I had thought this was already suggested but clearly not. Anime didn't really do the novels justice but was generally favourably rated internationally. Only the Prologue ever received an English translation so far.
I am also surprised. Something akin to High School Dxd. Considering I've bought that, it would be on my list
Publisher is Fujimi Fantasia Bunko, with 11 volumes.
The manga was published in English, I have it. Many detail differences between it and the anime.