The Kingdom of Rebecca is a rich and beautiful country. The residents of the Kingdom of Rebecca have been living a peaceful and peaceful life. Guarding this beautiful country is a sacred instrument named Kaqi. However, this sacred instrument suddenly and mysteriously disappeared one night. Without the guardian artifact, the Kingdom of Rebecca immediately began to decline. Through the divination of Rebecca's fortune teller Riva, the missing sacred artifact may be hidden on a beautiful planet called Karachi. In order to find the missing sacred artifact, a young man named Beibei embarks on a journey! When the boy set out on the road to the planet Karachi, the boy's sister Nini also followed her on the journey to find her relatives because she was worried about her brother!