Quick answer — Ayaka Ōhashi performed 1 anime theme, including "Oshiete Blue Sky" from Comet Lucifer.
Ayaka Ōhashi performed the anime theme songs "Oshiete Blue Sky" (Comet Lucifer).
Ayaka Ōhashi's first listed anime theme is "Oshiete Blue Sky", the ending of Comet Lucifer.