Lyney is the new leader, known as "Father", of the House of the Hearth, an organisation in the game Genshin Impact where orphans are raised to be loyal future members of the Fatui, a so-called diplomatic organisation led by the Her Majesty, the Tsaritsa that want to obtain all of the seven Gnoses of the Archons. Lyney became the new Father after the sudden disappearance of the previous Father, the Fourth Fatui Harbinger, Arlecchino. After her disappearance, Lyney was appointed as the Father.