Harukanaru Toki no Naka de: Hachiyou Shou OVA

Two side stories to the main series
Kokoro no Yukue (Ten) ~ Destination of the Heart
Story featuring the four Hachiyou of Heaven: Yorihisa and Takamichi, Eisen and Inori.
Minor incidents lead to the Hachiyou suspecting each other of committing a small 'crime'. Akane is brought in to assist with the case.

Omoi no Arika (Chi) ~ Where the Heart Belongs
Story featuring the four Hachiyou of Earth: Tenma, Shimon, Tomomasa and Yasuaki.
Kotengu is determined to challenge Yasuaki, however the other three and Akane try to prevent that from happening, asking also Fuji-hime to cooperate.