As Kaito and Lyra venture deeper into the world, they start to unravel the truth about the Eternal Trial System. It isn't a mere game mechanic—it's a tool created by an ancient being that once ruled this world. The trials serve a darker purpose, and Kaito soon realizes that every success he earns pushes him closer to a terrifying fate.
The journey takes them to forgotten ruins, hidden dungeons, and the lairs of fearsome creatures. Along the way, they meet other companions, each with unique systems of their own, from the battle-hardened warrior Drake, whose system boosts his strength with each injury, to the shy but brilliant mage Iris, who controls arcane energies through a complex series of runes.
Their party grows stronger, but the stakes continue to rise as Kaito uncovers hints that the trials may not be as random as they seem. Dark forces are watching, and Kaito's rise through the system has attracted the attention of powerful enemies—both human and otherworldly.