ILLEGAL KING: Aeternum Archive in the World That Shouldn’t Exist
For most, being chosen by a Djinn or drawing a Servant in a Grail War is a dream. For him, it’s a terrifying second life. One moment he was a forgotten soul on Earth; the next, he’s a nine-year-old claimed by a living Leviathan, eyes like trench-stars, memories intact, and a heretical skill, Aeternum Archive, that records, refines, and fuses the rules of other powers.
Stuck between Magi’s king-making dungeons, Fate’s Grail politics, Rimuru-style monster nations, Overlord’s undead dominion, Shield Hero’s holy slavery, Re:Zero loops, Log Horizon oath-law, and Tanya’s war machine, he sees “destiny” for what it is: leverage. Sovereignty isn’t a calling; it’s survival. His path is to secure power, sanctuary, and a myth no system can own.
And becoming the Illegal King is just the surest way to get it all.
Fusing the rule systems of Magi, Fate, Overlord, That Time I Got Reincarnated as a Slime, Re:Zero, Log Horizon/No Game No Life, Shield Hero, Mushoku Tensei, Eminence in Shadow, Arifureta, Tsukimichi, Wise Man’s Grandchild, Cautious Hero, How Not to Summon a Demon Lord, and So I’m a Spider, So What?, this story blends high-stakes action, myth-bond romance, and the complicated slice-of-life of a child-king raised by a jealous sea-god, who’s in it for sanctuary and might save the world by accident.
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Additional Tags:
No Incest, No Rape, No NTR, No Yuri, Harem, Black MC, Child Protagonist (9), Raised by Leviathan, Djinn, Grail War, Noble Phantasm-like Skills, Dungeon Conquest, Nation-Building, Political Intrigue, Return by Death Vibes, Contract/Vow Magic, Household Vessels, Servant Class: Calamity, Power Synthesis, Continuity Debt, Found Family, Tsundere, Yandere Goddess (Protective), OP Growth (Costly).