Survival in Another World with My Mistress!

Kosuke found himself in a whole different world. Standing there with the wilderness to the east and a forest to his left, he decided to make good use of the occurrence, and tests his knowledge, to where he finds this amazing crafting ability, just like the games from his original world! ――This is a light for life in a different world. When I thought, I was suddenly attacked by a beautiful dark elf…?!