 Anton, one of the scientists from Earth, is sent to infiltrate the local populace of the Kingdom of Arkanar and help them progress as a society, although he is forbidden from getting involved with local politics or forcibly interfering with the advancement of technology or culture.He assumes the identity of Don Rumata, a nobleman who resides in a large castle surrounded by poverty.There, he lives with Ari, a young woman whom he has taken as his bride, and the juvenile prince of Arkanar.