In her human form, Iguara opened a pet shop selling furry gerbils called Chanelas. Each Chanela would emit a unique perfume scent and doesn't require food or water. However, these Chanelas would steal human energy for Iguana by hypnotizing their customers who bought them, causing them to invest their energy admiring their pets and being apathetic to the world they live in. Shingo Tsukino, Usagi Tsukino's brother and some of her classmates fell under the influence of the Chanelas. After investigating the animals, Usagi also fell under its spell but was saved by Luna. Luna and Usagi investigated the suspicious pet shop only to be attacked by Iguana in her true youma form. As a Youma, Iguara would use her customers (including Shingo) to defend her, but they were healed by Sailor Moon's Moon Tiara Stardust. However, even without her minions, the Youma was a powerful opponent, capturing Sailor Moon with her tail with the intent to crush her. This proved to be a lethal mistake, as it put Sailor Moon in an ideal position to attack Iguara's single weak spot: a glowing spot of scales at the base of her tail. Sailor Moon used her Moon Tiara and managed to hit the careless Youma's weak spot dead on. Iguara began to scream as her body slowly turns to sand but it soon turned down to a whimper shortly before she crumbled to dust. Upon the defeat of the Youma, the Chanelas also disappear.
- Her name comes from the English word "iguana", which is written as "イグアナ" in katakana
- She has a resemblance to Usagi's teacher Haruna
- Although Iguara never appeared in the DiC dub, she briefly appeared in an early promotional video of the series made for DiC