Matsumoto Kōshirō IV was one of the great tachiyaku (male leading actors) of late-eighteenth-century kabuki, and this [hosoban](/glossary/hosoban) print in the Art Institute of Chicago, from a multi-sheet composition and dated to about 1789, shows him as the historical warrior Hatakeyama Shigetada disguised as the contemporary commoner Honjō Sōheiji, in the first-month Nakamura Theater production of Edo no Fuji Wakayagi Soga. Disguise plots — in which historical figures appear in contemporary garb under assumed identities — were a kabuki convention, allowing playwrights to map medieval heroism onto Edo urban life. Shun'ei's portrait gives the actor the firm Katsukawa outlining suited to a male warrior role, while the contemporary costume signals the disguise layer of the plot. The print's identification as one sheet of a multi-sheet composition suggests it was originally part of a larger tableau showing the cast assembled for a key scene; the surviving sheet alone documents Kōshirō IV in a characteristic pose from a specific Edo kabuki season.