Palm Tree Boma was a Boma Beast who had assisted in the Boma/human wars 20,000 years earlier with its entire clan before they were all sealed within coconuts on a South Seas island. The lead Palm Tree Boma drifted out to sea where it remained sealed until it drifted onto Namegawa Island park, where both Lehda and a Polynesian festival conducted at the park removed the seal and allowed it to attack once again. Using its powers, it hoped to create special totem poles out of humans to summon all of the Palm Tree Boma clan and to unseal them so that it can create a massive Boma invasion to crush humanity.