Kousuke suddenly awakens in the middle of a vast, mysterious forest, only to discover that he has been transported to a completely foreign planet. With no supplies or allies, survival becomes his top priority. Using a unique gaming interface, Kousuke gains the ability to gather resources, craft tools, and build everything he needs to stay alive. But danger lurks in the darkness. When night falls, hostile inhabitants who despise humans confront him. Just when things seem hopeless, a beautiful dark elf named Sylphy appears, claiming Kousuke as her asset and vowing to protect him—even with her life. This marks the beginning of Kousuke’s perilous yet thrilling adventure on an unknown world.