Hida no Ichimatsu (Ichimatsu of Hida) is his title. He is one of the Black King's top three generals. However unlike the other two, Ichimatsu is loyal only to the Purple Lady (wife of the Black King).

Spoiler

After Sarasa helps Lady Purple gain control of the northern region and form a pact with Kazuno to stop the fighting between the Black Army and Kazuno, Lady Purple sends Ichimatsu to help Sarasa in Kyoto. Ichimatsu has shown affection for Kikune, and during one of the side stories asks her to marry him (albeit half jokingly). Nevertheless, the two of them are seen to be living together like a married couple.