Wakeari Kusushi no Yorozu Hoechiyou

Synopsis

The pharmacist Kohaku, who works at the drugstore "Seishindo," goes to get some herbs with his snake Hakkaku. One day, Kohaku gets attacked by a man-eating spirit and his chest is torn open. As his heart is about to get eaten, the one who saves him is Hakkaku in human form. (Source: MU)