Selesia Upitiria

The heroine of the franchise Elemental Symphony of Vogalchevalier Selesia confronts the mysterious Altair until Souta Mizushino enters her world and she is forced to protect him. Shortly afterwards Selesia is thrown into Soutas world where Souta reveals she is in fact a fictional character. Coming to terms with her situation Selesia agrees to help Souta find the other Created so they can find a way to return to their world and stop Altairs plans. Her Creator is Takashi Matsubara. Source: Re:Creators Wikia