Associated Names:
A Personal Vendetta
A Private Vendetta
Una venganza personal
Une Revanche Personnelle
豪色復仇
아주 사적인 복수
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Summary: The wife of a charming former classmate who he wants to swoop right away, and her daughter who feels increasingly like a woman... Youngjin, who became a tutor at the house of Daesu, a former high school classmate, begins to have an uncontrollable relationship with other women from the moment he learns the secret of the house.
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Chinese: https://e-hentai.org/g/3151468/13c914e2aa/
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I recommend reading the manhwa on PC using Yomikiru, and on Android using TachiyomiSY.