Jūōsei

In the year 2436, humanity declared independence from the Solar System and migrated to the Balkan Star System, located 150 light-years from Earth, establishing their own government. In Juno, the capital colony of the Balkan System, lived twin brothers Tel and Rei. Thanks to their parents—a politician and a scientist—they excelled in all fields. However, at age eleven, their parents were murdered, and the brothers were exiled to Beast Planet, an undisclosed world used exclusively to banish those sentenced to death. Beast Planet is a harsh world dominated by the Beast King, where survival of the fittest prevails amidst brutal nature and unimaginable ecosystems. For Tel and Rei, who grew up with advanced technology and environmental protections in the colony, surviving on this planet proves extremely difficult. With his resilient spirit, Tel protects his timid younger brother Rei as they begin fighting to survive. Tel demonstrates exceptional adaptability, quickly adjusting to Beast Planet's conditions, but Rei dies after being attacked by plants. Soon after learning that only the Beast King can leave the planet, Tel sets becoming the Beast King as his goal, seeking the truth behind his parents' murder and their exile.