Naisho no Shinroshidou ~Sensei! Mou Gaman Dekinai!~

Going to a university, looking for a job... these girls are standing at the crossroads with a lot on their minds...
A novice teacher, through a strange twist of fate, is appointed as their guidance counselor and starts offering them a new kind of sexual guidance.
The students are at first bewildered and shy at his advances, but before long...

[from DLSite English]