Jell-A

Jell-A is a friendly and erudite being who lives deep in the Cave. Jell-A was cultivated by Dr. Bramsen from Fung spores, rather than developing as humanoid mutants do. They makes soaps and cosmetics for the islanders (despite not needing any for themself), and tracks the health of the Papu Tree with Dennis. They enjoy chemistry and can be found frequently running experiments in their lab. They are also close friends with Bopek, and the two enjoy spending time together.

Gardening
Jell-A can teach Kai the Otherworldly Oratorio, one of the last remaining growing songs. The garden Kai plants is in the deepest cave under the Papu Tree, and is over the soil they uses to extract nutrients. Planting this garden restores the nutritional value of the soil, which in turn saves Jell-A's life, as they had been slowly starving.

Trivia

 * There is a record player with a stack of records with jazz music in Jell-A's livingroom.