Rainbow Prelude is a manga by Osamu Tezuka, and also the name of one of his books in Kodansha's line of "Osamu Tezuka Manga Complete Works" books containing a collection of Tezuka's short stories. The stories included in the book are "Rainbow Prelude", "The Curtain is Still Blue Tonight", a manga version of Shakespeare's "The Merchant of Venice", "Peacock Shell", and "Song of the White Peacock".

(Source: Wikipedia)

Chapters:
1) Niji no Prelude (虹のプレリュード); Shuukan Shoujo Comic 1975/10/05-10/26
2) Curtain wa Konya mo Aoi (カーテンは今夜も青い); Shoujo Shinnen Zoukangou 1958/01
3) Venice no Shounin (ベニスの商人); Chuugaku 1-Nen Course Furoku 1959/04
4) Kujakugai (孔雀貝); Shoujo Club Furoku 1958/06
5) Shiro Kujaku no Uta (白くじゃくの歌); Nakayoshi Natsuyasumi Zoukangou 1959/09/15