can t remember name of a tf related manga

[kurai4u]

Hi

some time ago i was reading the first capture of a tf related manga
but i can t remember the name anymore

story: the people found themselfe i an other world
(cuz of some kind of beam or so)

poeple turning in animals (girl into t-rex and ripps away her brother)
trying to eat eachother gore/violence and stuff ...

does someone know the name of this manga ?
and perhaps if there are more than 1 chapter

(sry for my english it s not my first language)