"I'm pre-menstrual, so I just want to fuck anyone! *Inner Voice" "Wait, what is this voice??" It's the inner voices of the girls! A girl's true feelings are a forbidden territory for boys, something that should be impossible to know. But what if you could hear their raw, honest inner thoughts...!? A male student gains the ability to hear inner voices through a trivial incident. He's not the popular type; in fact, he's a background character who isn't even considered a romantic option by girls. However, there are actually moments when even girls like that are in heat! Those gaps in time, like right before their period or when they're horny because they can't fuck their boyfriends, are exactly the right moments. If you can hear their inner voices, you can pinpoint and target those exact moments! A perfect hit every time! Actions that would normally be treated as sexual harassment are promoted to the best possible acts that are welcomed only in these moments! So, by listening to their inner voices and making a move at the best timing, I'm fucking girls left and right! I can even get with the female teachers!