The Marquis Eldest Son's Lascivious Story

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