Seiyu Hirano Aya disclosed in her twitter that her management office Spacecraft Entertainment has been prohibiting her from appearing in newly started anime since last year. She said she felt fortunate to have opportunities to appear in the sequels and long-term series. She has been booked for Jewelpet Sunshine, Seikon no Qwaser II, Nurarihyon no Mago 2, Fairy Tail and Maria†Holic Alive this year.

Source: Hirano Aya's tweet