Astrologist Mona Megistus, or simply Mona, is a playable Hydro character in Genshin Impact. An astrologist of knowledgeable skill and high pride, Mona has settled in Mondstadt to avoid suffering the ire of her master after unwittingly reading the latter's diary. This is a version of her that has gone for a summertime vacation with the Traveler that she saved up Mora for. Where she would be normally prideful and erudite, she now is a tad bit more carefree and playful, and even flirtatious.