Jigoku Inu wa Shisai ni Kurai Tsuku

"Don't forget all I've taught you." The beautiful priest Phaethon is tasked with teaching Cerberus, the strongest gladiator, about sexual relations as part of a plot to breed an even stronger fighter. The plan for Cerberus to father a child reaches an impasse, however, due to his lack of experience, and Phaethon quickly comes to dislike his bashful demeanor. Meanwhile, Cerberus's love for the priest grows ever deeper... [**Original JP**](https://www.chil-chil.net/goodsDetail/goods_id/150634/) [Official Korean](https://ridibooks.com/books/297082080?_s=instant&_q=%EC%BC%80%EB%A5%B4%EB%B2%A0%EB%A1%9C%EC%8A%A4%EB%8A%94+%EC%82%AC%EC%A0%9C%EC%97%90%EA%B2%8C+%EB%8B%AC%EB%A0%A4%EB%93%A0%EB%8B%A4&_rdt_sid=search_instant&_rdt_idx=4&_rdt_arg=%EC%BC%80%EB%A5%B4%EB%B2%A0%EB%A1%9C%EC%8A%A4%EB%8A%94+%EC%82%AC%EC%A0%9C%EC%97%90%EA%B2%8C+%EB%8B%AC%EB%A0%A4%EB%93%A0%EB%8B%A4)