Rainbow Prelude (虹のプレリュード, Niji no Pureryūdo) 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, contains 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 (en)