Rosalie was born on Earth, but spent most of her life on a remote, useless planet. She knows little about what is going on in the galaxy. On her twenty-fifth birthday, the girl, due to curiosity and bad luck, gets into trouble, from which Ivar de Karma, a risk-obsessed adventurer, helps her get out. In exchange, he asks Rosalie to join his team and carry out an illegal task for a high-ranking official. She agrees, naively expecting fun adventures, and has no idea what kind of madness she is about to plunge into. At the same time, Eva Esora is investigating the mysterious disappearances of people throughout space and is already inclined to think that the abductions are not the work of a person, but something completely alien. But over thousands of years of expansion, people have never met other intelligent beings and have already lost faith that there is anyone in the universe other than us.