How Could My Wife Be a Demon Slayer?

"Hmph! It is indeed a demon realm, even the monsters have lost their demonic aura!" "That's television." "I just traveled two hundred miles in the direction you pointed, and I didn't find any monsters. You monster must have lied!" "..." The flying sword hit his throat, Lu Zhiming had a bitter look on his face. "Well... Let's just say... Is there a possibility... That you have traveled through time?" The girl frowned slightly. "What is time travel?"