Kamakiri no Ori 3 (onBLUE comics)

[Machine Translation] The immoral psychopath and the young female president are turned into women through their obsession with each other. The young head of the Toma family, Ikuro, finally loses his virginity to his longtime servant, Norihiko. Ikuro, who now knows what a man tastes like, is held by Norihiko in the president's office, in the company lavatory, in his car, and at a Japanese inn, away from the public eye, and his body is developed like that of a woman. Ikuro clings to Norihiko's love while wavering between his relationships with his concubine brother, Ranzo, and his wife, Sachiko, who is married by political intrigue, but when a man asks for his body--? A sensual period romance of obsession and dependence, woven by a rival master and servant. The story is based on the novel "Hear me, widen it, and penetrate it to the depths.

女にされていく背徳サイコパス執着攻×メス若社長執着愛と雌の華「私のかたちです。覚えてください」ついに長年の使用人・典彦（のりひこ）に処女を散らされた當間（とうま）家の若当主・育郎（いくろう）。男の味を知った育郎は社長室、会社の便所、車内、旅館――と人目を避けて典彦に抱かれ、雌のように体を開発されていく。妾腹の兄・蘭蔵（らんぞう）や政略結婚の妻・さち子（こ）との関係に揺れながら典彦の愛に縋る育郎だったが、とある男に、その体を所望され――!?下克上主従が織り成す、執着と依存の官能時代ロマン。「聞いて拡げて奥まで刺し貫くんです」