A one-shot volume, "Wild Rock" is set in a fantastic version of pre-history. It presents the tale of Emba and Yuuen's relationship, as the two very different heirs to warring clans meet and fall in love with each other. The volume also includes two side stories, one featuring the respective clan leaders in their younger days (and their own tempestuous relationship), and the other featuring Yuuen and Emba's niece, the adorable little Nava.