From now on, I will tell you honestly about something I experienced a long time ago. It was a day when I went to visit my aunt's house during summer vacation. It was humid that day, and it was sweltering hot, like being in a crowded train... My aunt had Tsubasa, who was the same age as me, at her house, and I liked her so I went to see her. Tsubasa was innocent and I was truly attracted to her. I heard that my aunt had recently divorced, but she was still as kind as ever, so I was relieved. But I saw her... My aunt was scolding Tsubasa to an extraordinary extent... Even when I asked Tsubasa directly, she just kept quiet and didn't say anything. That night, I woke up to Tsubasa's crying voice. The voice seemed to be coming from the basement where my aunt had said, "Don't come near me." I opened the door to the basement with trepidation, and there my aunt, who was supposed to be kind, was raping Tsubasa. I was overwhelmed by the sight and didn't realize that my aunt had found me. "You broke your promise..." When I saw Tsubasa being restrained by my aunt with her cold eyes, my groin reacted contrary to my feelings. And my aunt, who saw through me, instructed me to rape Tsubasa together with her...