Survival in Another World with My Mistress!

In this story from the creator of Reborn as a Space Mercenary: I Woke Up Piloting the Strongest Starship!, a man uses video game crafting powers to survive a fantasy world–with the help of his beautiful dark elf mistress! (And don’t miss the manga adaptation, also from Seven Seas.)
Kousuke suddenly wakes up alone in a vast forest that clearly isn’t anywhere on Earth. Now he has to find some way to eat, drink, and survive! Luckily, Kousuke also has the power to craft using a special video game menu that allows him to harvest resources and build whatever he can imagine. However, every time he goes to sleep, he’s attacked by one of the many non-human races of this world, all of whom despise humankind. Enter Sylphy, the beautiful dark elf who lays claim to Kousuke and vows to protect him–after all, she’s taken him as her property!

[From Seven Seas Entertainment]