Senjou no Misshitsu

The protagonist, who is a member of the photography club, is having trouble choosing a subject to submit to a competition. The protagonist, who is stuck in a slump, consults with Eriko-sensei, a busty female teacher. When he jokingly asks her to model for him, she immediately agrees, but what she suggests is nude photography...?!

(Source: Mujin Comics, translated and edited)

Note: Published in Comic Mugen Tensei 2022-01