Ore no Imouto ga Saikou no Okazu Datta

My younger sister, who has always been a normal and level-headed individual, recently stumbled upon me indulging in a little sister character from an erotic game. To my astonishment, she proposed to assist me in exploring my desires, even going so far as to recruit her school friends, including the most popular and stunning girl, to help facilitate the experience. As I struggle to navigate this unexpected development, I find myself grappling with the consequences of my sister's involvement and the implications it may have on my ability to form romantic relationships with other women. Furthermore, the fact that she remains present and watching me during these encounters is a constant source of unease.