takes place in a bleak future in which Tokyo is ruined and all the humans are gone, allowing wild animals to take over. New DLC for the Japanese release of the game brings one particular variety of human back into its natural habitat: the salaryman. He's the second hominid to be released as DLC, following the extinct "Peking Man
Considering that things like marking your territory, finding a nest, and mating are part of the basic gameplay of Tokyo Jungle
... this DLC's going to be pretty entertaining, in a potentially horrifying way.