The Bishoujo Senshi Sailor Moon Settei Shiryoushuu (“Pretty Soldier Sailor Moon Materials Collection”) was published by Kodansha two years after the conclusion of the manga serialization. This softcover book contains early sketches and character designs for the manga, some of which never made it into the story (for example, Diana the Moon Fairy became Diana the cat, Luna and Artemis’ daughter). The book also includes new full color illustrations introducing each section, never-before-published color illustrations created for Sailor Moon merchandise, black & white sketches that served as the basis of anime artwork, and a short parody manga called “Parallel Sailormoon”.
“Parallel Sailormoon” is a non-canon story set in an alternate or “parallel” timeline in which Usagi has a second daughter named Tsukino Kousagi, who becomes “Parallel Sailormoon”. (Naoko Takeuchi has stated that Usagi will only ever have the one daughter in canon). The inner senshi appear as adults while their daughters appear as younger-looking versions of them. This story is reprinted in Sailor Moon Shinsoban (New Edition) Short Stories Vol. 2 (published in English by Viz).
Translations of the Materials Collection are available at Miss Dream.
The 104 color illustrations were scanned by myself; the “Parallel Sailormoon” bonus manga pages were donated by sailorvenus.has.it.
These black & white illustrations appear after the color section. The first two images from this section (pages 106 and 107) are missing from my set of scans.