Viki is a magician specializing in teleportation. She is one of the few who possesses the Blinking Rune. No one knows where she has come from, but in her sleep, she has been known to say "Waffu..." which seems to have something to do with where she is from. She is trying to return to her homeland, but has been unsuccessful for a long time. She ended up participating in several major wars, spanning hundreds of years, but did not age between the wars, due to her not only teleporting wrong, but also moving through time by the incredible bad luck she has.
When she bumped into Nash in a forest in Harmonia, she teleported him to an odd dimension. There they meet a younger Viki who acted considerably more mature than Viki herself. She said that her name was Viki and told the other Viki and Nash how to get out of the odd dimension. Nash asked if she is Viki and she told him, "it's better to not know that..."
Her odd teleportation patterns cause confusion for those she comes across - for example, Lorelai, having first met Viki in the Twilight Forest in Falena, is surprised when Viki does not recognize her later when fighting together in the Sun Rune War, failing to understand that her first meeting with Viki was the result of Viki teleporting from several years in the future - as a result, at that time, she had never seen Lorelai before in her life.
- Blue Moon, KoRnholio (Info taken from Suikosource)