In a city where life is cheaper than steel and survival is measured in blood, nineteen-year-old Julian takes his first steps into the world of Fixers. Armed with an oversized sword, Julian joins the struggling Ashthorn Office alongside his fellow rookie Corin and their hardened seniors, Mira and Veyl. What begins as simple bodyguard work quickly spirals into a brutal education. Syndicate ambushes, treacherous contracts, and even encounters with Abnormalities force Julian to face the reality of his chosen path: in this world, hesitation kills, and every victory demands a price. Slowly ranking up, Julian begins to glimpse his own potential—yet ambition is a dangerous fuel. When tragedy strikes and Ashthorn Office is torn apart, Julian is left the lone survivor. In the depths of despair, something within him stirs: a fragment of a power whispered about only in fear and myth, a weapon bound to his very soul—his S.I.N. haunted by loss, Julian steps forward alone, vowing to climb higher, whatever the cost. Beyond the blood-stained ladder of the Fixers lies a mystery few dare even name: the Colours. And Julian intends to reach them.