Petirol's first appearance was in Episode 34, Wake Up Call. She and Cyprin used a glass statue to extract Pure Hearts from the students at Mugen School. When Sailor Venus trapped Cyprin with Venus Love Chain Encircle, Petirol appeared to stop Sailor Venus.
Cyprin and Petirol appeared unstoppable together, shooting energy beams from their staffs at the Sailor Scouts. In the end, the Sailor Scouts came up with a plan. Sailor Mercury used Mercury Bubbles Blast, and while Cyprin was chasing after Sailor Jupiter, Sailor Mars attacked Petirol, who chased after her. Sailor Jupiter stood in front of Petirol as Cyprin was shooting an energy wave at her, and at the same time Petirol shot an energy beam at Sailor Mars while she was standing in front of Cyprin. The two Sailor Scouts dodged the attacks, causing the two witches to be hit by each others' attacks, destroying them both.
Petirol shoots a red energy beam from her staff.
- Cyprin and Petirol are similar to Koume and Kotake from Legend of Zelda Ocarina of Time: Two witches, one red and one blue, and their attacks are turned on each other. In addition, that they are said to share the same mind and body is similar to Koume and Kotake combining into Twinrova.