Full-time God of Law! I Am the Rule [Forbidden Spell System]

In a world where alien invasions and supernatural crises have fused with reality. Every human is awakened to a special class. The protagonist seems like a hopeless nobody with no prospects. But his fate changes the day he binds with the Forbidden Spell System. While others chase mainstream abilities, his system only absorbs dark, terrifying, and taboo forbidden spells. At first, he seeks to avoid attention and just survive quietly, but every spell he learns shatters expectations—his forbidden magic is explosive, feared, and increasingly powerful. Drawn into legendary battles and dark conspiracies, he must master the most dangerous magics just to survive. As attention from heroes, monsters, and secret organizations intensifies, this supposed “useless boy” discovers he might just become the greatest legend of all—because, truth be told, forbidden spells are really damn good!