Tellu was the third member of the Witches 5 to appear in Sailor Moon S and the fourth member to appear in the Infinity arc. Her powers involved the use of plants.
Tellu made her entrance in Act 24 of the manga, under the guise of Ruru Teruno, a gym teacher and caretaker of the botanical garden. She was ranked at Level 404.
Tellu reverted to her Daimon form after being attacked with Pink Sugar Heart Attack, and was killed by Sailor Pluto's Dead Scream attack.
- Mandragora Buster - Tellu's only attack in the manga.
Tellu made her debut in episode 120 of the anime, when she purposely unplugged Eudial's abandoned invention, the Witches Electric Warp, while Mimete was still inside it, thus killing her. After Mimete's demise, Tellu took over leadership of the Witches 5.
Intead of using Daimons she sold Telluns, plants that she had created with the purpose of extracting Pure Heart Crystals. She was killed by her own creation, the Hyper Tellun, after Tuxedo Mask broke her Pure Heart Crystal storage container with a rose, leaving behind her Mugen Gakuen student ID. This information gave the Sailor Senshi the location of the Death Busters' whereabouts.
Following the standard convention of naming Sailor Moon villains after minerals, Tellu's name could come from a rare oxide mineral known astellurite, although "テルル" is the Japanese name for tellurium.