DVRT-5803 - Normally, my step-sister, who doesn't see me as a man, shows me her buttocks! Unable to bear it, I immediately covered it with a large object and vigorously trampled it! Kanna Sasaki Kanna

A step-sister suddenly appeared due to my parents' remarriage. Having grown up in an all-male household, I am flustered every day wondering how to interact with her. My step-sister, unaware of my feelings, seems to naturally not see me as a man, and exposes embarrassing parts of herself with an incredible lack of caution, which I find unbearable. One day, she wore tight clothes in front of me and flaunted the very vivid, plump lines of her buttocks... ※ This work shares some content with DVRT-058, scheduled for release around August 2025.