Circus is the second album of J-pop duo FictionJunction Yuuka.

This album includes their last four singles and their b-sides (with the exception of "Yakusoku"), the previously Tsubasa Chronicle Future Soundscape IV exclusive "aikoi", as well as four brand-new songs.

There are two versions of this album: the normal edition (with catalog number VICL-62426) and the limited edition (with catalog number VIZL-235).

The limited edition includes a DVD with the PVs of Silly-Go-Round, Kōya Ruten and romanesque.

[1] All tracks are written by Yuki Kajiura This article about a Japanese album is a stub.