Ogi Ranmaru is a well-known Gekiga artist ( Adult Manga drawer) ; he is a specialist of erotic drawing with mature models. This is a rare lot of a complete story with 20 plates ( number noted on the original brwn envelope with also author's name and Hot Manga) All the informations are notified on the first page with Title : Madam & The Well-hung Worker Her mensurations and some details of special scenes also on the parafin paper Under the parafin paper, the date 81 - 5 , at the bottom on the right side , a presentation of his model Name : Akiko Kono, situation, Housewife, married since 10 years, one child , 37 years old On the right side , author's signing in Kanji. Ranmaru used Maxon Comic Paper , 36,5 x 26 cm, the plates are numbered from 1 to 20 with pencil and with a blue pencil from 50 to 70. On the last page , he has written, The title and noted complete set. Technic : China Ink, The 2 last photos uploaded are to show his last book , always with a mature model. The conditions are overall good to very good ( more than 40 years old), old tape traces at the back of the first page, 2 small scratches on the 13th page ( surely traces of tape taken off ) , Some folds visible at the back on one top corner ( photos).