Koushaku Chakunan Koushoku Monogatari: Isekai Harem Eiyuu Senki

También conocida como: 侯爵嫡男好色物語 ～異世界ハーレム英雄戦記～ · The Marquis' Eldest Son's Lascivious Story · Koushaku Chakunan Koushoku Monogatari - Isekai Harem Eiyuu Senki · The Marquis’ Eldest Son’s Lascivious Story · 侯爵嫡男好色物語 · 후작적남호색기 ~이세계 하렘 전기~

A Japanese salary man was reincarnated in a different world with swords and magic. He reincarnated into the family of a powerful noble. One day when he became twelve years old, he was suddenly summoned by his father. "I do not mind whether it is a woman in the town or a maid in our house, learn about women." Having gained the permission of his father, he uses his power as a noble to have his way with women.