What is a ren and what does it eat?

A ren is a mythical creature from Chinese folklore, often depicted as a type of water spirit or dragon. Its diet primarily consists of aquatic plants and fish, reflecting its association with water environments. In some stories, rens are also said to feed on the essence of humans or other creatures, symbolizing their connection to life and vitality. Overall, the ren embodies the harmony of nature and the balance between different elements in the ecosystem.