Mona Megistus is a playable character in the popular action role-playing game Genshin Impact. Known for her astrological prowess, Mona is a highly skilled Hydro mage who hails from the region of Mondstadt. She is a self-proclaimed astrologist who devotes herself to unraveling the secrets of the universe. Despite her poverty, Mona is proud and refuses to compromise on her principles, often finding herself in humorous situations due to her frugality. Her role in the game includes being a powerful support character, utilizing her abilities to control the battlefield with hydro attacks and crowd control techniques.