A "healing story" OVA from director Satou Junichi, the director of Aria and Umi Monogatari. The story takes place in Seto Inland Sea and is about a girl who likes taking pictures.

The 7th Division's Private Hyakunosuke Ogata and former Shinsengumi Vice Commander Toshizou Hijikata find themselves on opposite sides of a gang war in Barato after hearing rumors of the Hidoro gang possessing an escaped prisoner's tattooed skin. With a lead to the hidden Ainu gold close at hand, the two gladly take up arms but a betrayal will force both sides to think twice before carelessly jumping the gun.

Continuation of Teppei's journey with B't X to rescue his brother Kotaro Takamiya from the Machine Empire. The OAV series picks off from the TV series from the point where Hokuto successfully saves both Teppei and B't X and makes B't X far more powerful than before. (Source: ANN)

Bundled with the 19th and 20th volumes of the Ao no Exorcist manga. The first episode is based on the second chapter of the second Ao no Exorcist novel Home Sweet Home. The second episode is based on the title chapter from the Ao no Exorcist: Spy Game novel.