Kokoro's school is collaborating with another to organize a bazaar to sell/re-home gently worn goods that everyone no longer uses around their houses. Tama Elder informs her on her walk home from school that she and her Cocotama buddies have won a vacation to Cocotama World. They get a firsthand look of how full-fledged Cocotama gods operate. Elder Tama requests Kokoro's assistance in assisting humanity in realizing the value of their possessions rather than discarding them so quickly. Tepple, on the other hand, had slipped into the Cocotama realm with the others and grabbed a key acorn that unlocks the Happy Tree, which contains Happy Stars, the source of magic for their world. Elder Tama discovered it had gone missing, and the Cocotama group set out to find it.