Gravity falls crossover To Rwby

So it's exactly what it sounds like but with plot .
So in this story weirdmagedon is successful, bill kills the world and all of dippers friends and family members, all the while bill makes dipper watch while they're being slaughtered .first was his gruncles and then his best friends and Wendy and candy and grenda ,then his mom and dad then his enemies turned friends, then the whole town of gravity falls and then his crush ,ever since he saved her from that ghost at her mansion he had felt something for her, but now she was dead,after bill killed every one dipper knew he killed the rest of the world, after that he killed the one person who ever meant anything to him ,he killed mabel his twin sister, dipper didn't want to live anymore so he begged bill to kill him but bill had other plans so he sent him to a new world, one with monster's and huntress's and huntsman, he sent him there for him to warn them that bill cipher is coming!