From the first part, we know: By a mysterious coincidence, the main character of Hentai, Amano Taichi, became the objects of desire of all half-human girls. He must help to unlock the full potential of the girls Kuona, Suzu and Seira, having sex with them every day. In the second part, another strange event happens and all the students of the academy lose consciousness. To save everyone, Amano must get an extremely rare artifact "Sacred Mother's Milk". To do this, he must copulate with the mothers of his classmates - Mai-san, Yashe-san and Sari-san, and in the culminating stage he must milk them thoroughly to extract milk...

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