A Jellyfish

The story primarily revolves around a future era where genuine animals no longer exist. Instead, people cultivate schools of fish in laboratories and breed genetically modified jellyfish as their fish feed. The protagonist is a young jellyfish, celebrating its 30th day since birth. Having matured enough, it ventures out of its cultivation dish, passing through pipes, the laboratory, the city, and finally reaching the ocean floor. There, a giant jellyfish invites it to devour its own tentacles. Just as the young jellyfish is about to bite its own tentacle, it wakes up from the dream, realizing it is being observed by a scientist and is about to become the new fish feed...