I Have The Only Ero Knowledge In The World

In the Japanese web novel 'I Have The Only Ero Knowledge In The World,' the protagonist finds himself in a world where the concept of sex has disappeared. This unique setting leads to a series of unconventional interactions with women whose views on shame have drastically changed. With the only knowledge of erotic practices, the protagonist embarks on a journey of indulging in erotic activities with various girls, including training his younger sister, providing erotic massages to a sports girl, and engaging in NTR scenarios. Filled with adult, harem, and mature themes, this novel explores the life of a cunning protagonist in a world devoid of common sexual norms, making it a captivating read for fans of R-18 content.