The Planter.
The Planters (植民者, Shokuminsha), written also as "プランター" (Purantā), were human inhabitants of Toha Heavy Industries, but were almost completely wiped out during intrusion by Silicon Creatures. They carry the same gear as the Electro-Fishers.
Residing as workers within the Toha Heavy Industries building, Planters were theorized to be ancestors of the Electro-fishers. They wore armor similar to the Electro-fishers' armor, though they were noticeably much taller, towering above even Killy. Almost all the Planters were supposedly wiped out by the Safeguard, with Seu being the only known survivor.