In the peaceful period of the early Edo period, people lived in fear of Shadow Beasts that consumed the hearts of the people. Exorcists and hunters use their abilities to get rid of the beasts, and when a young exorcist named Hibana puts herself in a reckless battle against the Shadow Beasts, she is rescued by a lone hunter, Tsugumi, causing the beginning of a romantic adventure.

Note: Includes the one-shot "Kodomo wa Otona no Yume wo Miru" (子どもは大人の夢を見る).