One day, Lei Long transmigrated to the Ultraman universe in a car accident and became Ultraman Hega, with the bloodline of a Reionics. As the System continually assigned him missions, he kept appearing in various Ultraman stories. But gradually, Lei Long realized that his transmigration was no accident. There was a reason behind it, and he had a close connection to Hega. Yet the more Lei Long investigated, the more shrouded in mystery everything became. Will he ever uncover the truth? Why did he transmigrate to the Ultraman universe, and what is his connection to Hega? Stay tuned!