English Kyonyu Ken Sei Wa Haramase Onaho - Kuru Na Kyonyu Kenshi Ga ju Chin Ni Kuppuku ! Zettai Chusei No Kobi Mazo Ana Ni ! | 巨乳剣聖は孕ませオナホ～クールな巨乳剣士が巨チンに屈服！絶対忠誠の媚びマゾ穴に！～

The protagonist, who spent his days being exploited as a caravan porter, is one day attacked by monsters and is in a desperate situation when he is rescued by Reika, the strongest female sword saint and is captivated by her beauty.

The protagonist, wanting to get closer to her somehow, follows her, but is caught peeping and finds himself in a predicament. However, Reika is overwhelmed and shaken by the sheer size of his erect penis. Seeing this as his last chance, the protagonist pushes her down, giving in to his desires, and succeeds in thoroughly bedding Reika, who has absolutely no sexual experience! He completely subjugates her, turning her into a slutty masturbation toy who dedicates everything to him and fawns over him.

Thus began a life where he could treat Reika, the strongest and most beautiful sword saint in the world, as a masturbation toy whenever he wanted, and rise to the top with her power!