but is shown to have great respect for all of her sisters. She is the only one shown to be upset when Kōan is purified by the Silver Crystal. As with Ami, she is also a strategist and is incredibly talented at chess, though she apparently also cheats. She confronts Sailor Mercury in a game of chess. However, she is mocked for her failure by Calaveras and Petz, but Kōan persuades her that she is still loved and has a second chance. Berthier allows Sailor Moon to heal her. Later, she and Kōan, along with the Guardians, are able to convince their other two sisters to join them and become normal women. She is voiced by Yuri Amano in Sailor Moon R and by Rumi Kasahara in Crystal. In the DiC English adaptation, her name is changed to Bertie and she is voiced by Kathleen Laskey. In the Viz Media English adaptation, she is voiced by Cindy Robinson. She is the only sister that does not appear in the first version of Ankoku no Princess Black Lady musical, but does she appear in the revision portrayed by Manami Wakayama. Petz is the oldest of the four sisters and is a counterpart of Sailor Jupiter. She is named for the mineral petzite and her attack is "Dark Thunder". Petz asks Rubeus to allow her the chance to avenge Kōan and Berthier by enacting "Code: 003, Operation: Renew": infecting those among Tokyo populace with a debilitating cold so they can be replaced with Droids. Makoto is infected by one of the viruses and destroys a Droid double that attacks her while she starts to pass out in her apartment. Petz manages to take advantage of Jupiter's weakened condition to capture her in a barrier before being obliterated from behind by Sailor Moon. In Sailor Moon R, Petz often clashes with Calaveras, but the majority of both women's operations end up with them working together. She is very proud and is willing to step on others to achieve personal glory and power. She also appears bitter over a past relationship and reacts strongly when Calaveras teases her about it. After the treachery of Kōan and Berthier, Rubeus gives her a stick and instructs her to use it to kill the Sailor Guardians and reconvert her fallen sisters. The stick dramatically increases Petz's powers and also corrupts her personality; however, the Guardians intervene. Rubeus