Her nickname, Mozaïk, came from her first semester at Aretuza, as she bore the marks of skin pigmentation loss on her face. These blemishes were removed after the first semester, like the sorceresses did with all students, but the nickname still stuck to mock her. However, she took a liking to it and it soon lost its demeaning nature.
Geralt had flirted with her on numerous occasions so he could annoy Lytta, which later resulted in Lytta breaking Mozaïk's hand out of pure jealousy. After the storm haunting Kerack, she stayed with Geralt against the wishes of her mentor. She had an affair with Geralt, but the relationship did not last long. In Geralt's farewell letter, he asked of her to return to her teacher. She did return, but Lytta has used every opportunity to remind her of that fact. That can be seen in the epilogue of the novel Season of Storms where Lytta and Yennefer are sitting in Lytta's garden and out of spite, Lytta is forcing Mozaïk to talk about her affair.