Giemurou of the Kappa is the main antagonist in episode 19 of the 2010 TV series Tensou Sentai Goseiger. He is a tick-themed member of the Earth Condemnation Group Yuumajuu.
He was voiced by Ryūzaburō Ōtomo.
Giemurou is one of the few Yuumajuu to have evaded destruction by the previous Goseigers by hiding in a pond, where he is encountered by Buredoran for his schemes. As instructed, Giemurou abducts a group of people as well as Gosei Knight in a scheme to use the powerful Gosei Power of Gosei Knight to mutate people into kappa-creatures who would ultimately dry up the Earth's oceans. However, Agri directly gets involved due to a young daughter abducted by the Yuumajuu, using his anger to destroy the power distributor with his Landick Ax and ultimately inspire Gosei Knight to free himself from captivity. The knight Headder soon destroys Giemurou with the Knightick Dynamic.
After Buredoran grows the Yuumajuu with Bibi Bugs, the Goseiger prepare to use Gosei Great until Gosei Knight's determination grants him three new Gosei Cards, including the Knight Brothers which allows him to create a brand new mecha form for himself: Gosei Ground. Using this formation, Gosei Knight easily defeats Giemurou with GrounDrastic.
- Its kidnapping of people is similar to the monster of the movie kidnapping the daughter of the main character.
- Giemurou is based off of the Kappa, one of the most well-known and most-often seen Yokai in Japanese culture that is well-versed in the arts of sumo wrestling.