Rena Mamiya

Rena Mamiya, also known as the Uca Worm, is an Executive Worm and a major antagonist in Kamen Rider Kabuto.

History
The original Rena was a compassionate singer who aspired to be in an opera. Her form was copied by Uca Worm, though Rena's kind-hearted personality still laid buried within. Rena was the one who initially spearheaded the Worm invasion until her originally personality resurfaced and realized she was a Worm, causing her to panic until she was comforted by Daisuke. However, Rena's original personality returning caused the other Worms to decide to eliminate her.

However, the Uca Worm eventually retook control and attempted to obtain the Hyper Zecter, only to be killed in an explosion from a hidden bomb inside the Hyper Zecter case.