As a shut-in living in the apocalypse, Ling Feng gets a miraculous System and takes it with him as he transmigrates through the world of anime to complete collapse missions. And since the worlds of anime are full of girls... For example... "Hey, Tohka, if you're hungry, don't eat tree bark. It's not like I'm starving you." "No... Miku... We're not putting on women's clothes!" "Misaka, stop firing those blasts everywhere!"
Well, our mighty Ling really does lead a colorful life...
This book was also known as Slaughtering Worlds and Slaughtering the Anime World, but the author thought those titles sounded awful, so they were changed.