Rozaliya and Liliya are twin sisters raised in Cocolia's orphanage, along with Bronya and Seele. Rozaliya has pink hair meanwhile her sister, Liliya has blue hair. Rozaliya is a very energetic and outgoing girl, she's usually more competitive and positive than Liliya. Unlike Rozaliya, Liliya is the calmer of the Olenyeva twins. Due to an accident, their body has been modified with Honkai Beasts. Rozaliya and Liliya are now famous (self-proclaimed) star group "Vodka Girls". They hate Refando.