Osananajimi Ecchi

In a place where the mountain wind blows fiercely across the fields spread across the countryside...

The protagonist studies very hard in order to get into the same urban university where the girl who is his unrequited love has applied. However, his raven-haired, big-breasted and cute childhood friend is also skipping about and following him around today. She plays all the cards in her hand to try and disturb his studies, including inviting him to play games and even kissing him. Her reason being that she wants the protagonist — who is the one she loves — to stay in the countryside.

They're childhood friends after all...
But after crossing that line, the two of them will be like beasts thirsting for each other's bodies.

(Source: FANZA, translated)