Dungeon Harem Made With Elf Slaves summary: Accompanied by his elf slave, Lilia, Mars sets out to conquer the world's seven greatest dungeons and obtain the legendary "Tome of Forbidden Magic," said to possess unimaginable powers. However, his quest is not without distractions, as he spends most of his time indulging in passionate love-making with Lilia. Will their journey toward their ultimate goal be deterred by their relentless desire for each other? Only time will tell.