My Girlfriend's NTR After Moving to the City: My Girlfriend Nao Jinguji Went Ahead to Study at University and Had Her Body and Heart Stolen by a City Man
In the final autumn of their student lives, he finally begins dating his childhood friend, Nao. They had both aimed for the same university, but only he failed the entrance exams. Nao gets accepted and moves to the city ahead of him. They promise to write letters, and as he receives her seasonal letters, he finds encouragement—but also senses her gradually being consumed by city life, leaving him with mixed emotions. Meanwhile, Nao attends a drinking party with an upperclassman she met at university. Under the influence of alcohol and impulse, she ends up having sex for the first time. The pure country school girl slowly transforms, season by season, as she becomes ensnared by the desires of city men.