Daiyousei is a minor character in the Touhou Project series, first appearing in 'Touhou 6: The Embodiment of Scarlet Devil.' She is often depicted as a mid-boss fairy with green hair and wings, residing near the Misty Lake. Although not much is known about her background or abilities, she is beloved by fans for her gentle appearance and is often portrayed as friendly and helpful to other fairies, especially Cirno. She does not play a major role in the main plot but is a memorable part of the series.