Arianwen Beynon is a pilot in the Osean Air Defense Force assigned to the Gwynedd Squadron. Unlike the rest of her cohorts who were born in Cymria, Arianwen was born in the Erusean capital of Farbanti to parents that descended from Cymrian immigrants from Osea.
Arianwen was known to fly with grace and flexibility during sorties and practice runs. She is also known to have a singing voice that soothes friends and comrades, and play guitar. This has influenced her flying style, and lead her to obtain the callsign Muse, or Awen in Cymrian.