Original pen and ink drawing by legendary SM artist Yoji Muku.
The piece includes a specification overlay layer used in the publishing process.
The reverse bears the publisher stamp and date

This drawing was originally published in Shōsetsu SM Select (October 2001), placing it within the final period of Muku’s career.
Original artworks by Yoji Muku are extremely rare, making this a highly significant collector’s piece and an important artifact of postwar Japanese SM art.