A Dating Sim of Life or Death (Light Novel)

When mundane NEET Hasegawa Ryo woke up, he found himself in a dating sim that completely mimicked reality. And the only way to escape from the game was seemingly to conquer several dangerous girls… Making use of the “Save” and “Load” options to rewind time, as well as “Items” which generates mysterious effects, Hasegawa set out to clear the game. However, the game he was caught up in was not only a dating sim but a life-or-death game!?