On Earth, on the single mainland Gondwana, humans and reptiloids live. In the Runian Queendom, in the capital of Runia, two girls live: Odile (an ordinary human) and her friend, Odette (a mermaid, a waterfowl reptiloid). Both girls have been friends since childhood, but their friendship is somewhat strange.
Odette is in love with Siegfried, the son of a businessman. And in order to be with him, she dreams of becoming a human, like the legendary mermaid Runia, the founder of the country, after whom the capital was named, and then the Queendom. Although everyone knows that Runia's transformation into a human is just the legend, and it is impossible for a mermaid to become a human... Or not?
Odile has strange dreams about everyday problems and worries. Sometimes, a rosewood door appears in her dreams... Where does it lead to? Why, when Odile wakes up, does she never remember what was in her dreams after she walked through the rosewood door? And who are Rima, Dosrima, and the mysterious Bee Queen Miya? How are they related to Odile and Odette's past?
In this story, different epochs and destinies of the planets are intertwined... And gradually, the veils of secrecy will be slightly opened over everything that happens in this unusual world, in which there are dragons, but no swans...