Sunset clouds are friends of humanity. Pink, a cloud and the daughter of Violet, befriends the queen of a nuclear-armed state and a girl living on an isolated island on Earth. However, a mean rain cloud named Brown and his daughter Sepia attack Pink out of jealousy.
1957/04-1958/02 Serialized in Shojo Book (Kodansha)
This is a fantasy shojo manga that can be seen as a prototype of the idea found in Unico, where beings from a heavenly realm or another world descend to Earth (the real world), transform into humans, and become active among them.