Father's woman

8:15. Even though I know it's a detour, I always go through this path to school. To meet my first love, even though I don't even know my name. Then, one day, when we finally became friends and we were able to say hello, I learned a certain fact. Her first love was the lover of a father who came to replace her mother, who had been accommodating to her unconventional father, who had left. That night, I heard Ayumi, my father and I, my first love, have sex...