Featuring “Tsukaku” by amazarashi (86 -EIGHTY-SIX- Part 2 OP) and “Overlap” by Shiyui (DEMON LORD 2099 OP), respectively, creditless versions of Blue Exorcist -The Blue Night Saga-‘s opening and ending song sequences are now available to watch below. Previous episodes and the latest series are currently streaming on Crunchyroll.
Blue Exorcist -The Blue Night Saga- Opening Video
Blue Exorcist -The Blue Night Saga- Ending Video
Based on the manga by Kazue Kato, Daisuke Yoshida directs Blue Exorcist -The Blue Night Saga- at Studio VOLN, with series composition by Toshiya Ono, character designs by Yurie Ohigashi and music by Hiroyuki Sawano and Kohta Yamamoto.
Crunchyroll describes the overall story:
Assiah, the realm of humans, and Gehenna, the realm of demons. Normally, these two dimensions would never intersect, but the demons are now intruding on the material world.
Source: Official YouTube (1,2)