Within days of losing his parents in a fatal car accident, Ryan's collapse deepens when he discovers his fiancée's infidelity with his best friend. Seeking solitude in a mountain home, he faces an even greater catastrophe: the world's apocalyptic transformation. Monsters materialize across civilization while dragons seize control of the skies. Confronted with this new reality, Ryan gains access to a mysterious System—offering dungeons to raid, character classes to unlock, devastating skills to master, and the power to absorb monster DNA. Stripped of everything, he commits to a singular goal: grow stronger and survive. No longer willing to be a helpless spectator, Ryan weaponizes every advantage the System grants, driven by the conviction that ultimate power will shield him from further loss.