She later participated in several projects with various artists in addition to the Radio Japan Series and being part of the chorus for the Kobe earthquake disaster charity single.

In 2005, Origa performed songs for the anime series Fantastic Children, most notably the ending theme "Mizu no Madoromi".

[citation needed] In 2006, Origa was involved in the lyrics and vocal performance for the opening song "Player" and the ending theme "date of rebirth" from the movie Ghost in the Shell: Stand Alone Complex - Solid State Society.

There, she performed all three Ghost in the Shell opening themes; "Player" from Solid State Society, "Inner Universe" from the first season, and "Rise" from 2nd GIG, and substituted for Ilaria Graziano on "Yoru_Vo", Pierre Bensusan on "ELM", and Gabriela Robin on "Torukia".

[citation needed] On December 19, 2008, she performed at Sugizo's "Rise to Cosmic Dance" concert held at Tokyo's Shibuya-AX hall.