It is said that Gerald spent most of his life outside the Gyro Kingdom since he was fifteen. According to the little information people could gather, the youth wandered the Central continent alone and even the son of heaven wasn't aware if his heir was still alive or dead for a decade plus.
In a world filled with magical beasts, orcs, elves, dwarves, and even more dangerous beings, the young crown prince explored the world and stumbled upon the immortal pathway. A pathway that grants the user immortality but it's said that it's hard to cultivate and has a lot of unexplained conditions attached to it. Yet, Gerald mastered this secret pathway and even brought it back to Gyro and thought the son of heaven but even he couldn't master this pathway to an extreme level like his son.
Even the cosmic spirit host of the sun deity couldn't master this power in a profound realm. All have proven to be inferior to the crowned prince in terms of sheer talent.