After Traveling Through Time, I Will Slay Demons with My Physical Body!

After the Sanwu girl fainted, she found that she had traveled through time and came to a ridiculous world full of monsters! What should I do if I look at a big demon for the first time after traveling through time? ! ! Urgent! ! ! ! Waiting online! ! ! System: Let me help you! ! ! Kill monsters to gain experience points! Experience points can be used to upgrade and strengthen skills! Insufficient experience points can be replaced by lifespan! Consuming lifespan has special effects!