Who Designed This Underworld Dungeon? - Chapter 30 - Dungeon Domain Master!!!

His Royal Highness the King of Han, who was afraid of the dark and ghosts and loved to cry, has always been the good baby of the princess.
Until one day, His Royal Highness the King of Han found a book in the bookstore…
Picture book?
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Search keyword: Protagonist: King of Han, Princess of Han

- Description from novelbuddy

The world has changed into something like a game.

It resembles a survival virtual reality game where people were attacked by zombies and monsters.

And I was the last user of that game.

Earth was supposed to be a safe haven.And for a time—it was.Until one night, golden stars lit up the sky like cosmic flames. The heavens swirled, the winds howled, and the world braced for its end. But just as quickly as it came... the phenomenon vanished.Weeks later, everything changed.Humans began to awaken powers once thought to exist only in fantasy. Skills—mystical, world-shaking abilities. Some used them for good. Others unleashed devastation.What could a gun do against a man who could turn into a living bomb?Portals tore through the sky, connecting Earth to monstrous realms. Beasts, demons, and nightmares poured into the world. Amid the chaos, powerful humans rose to fight back—and won. The survivors called them one thing: Heroes.Among them, one boy was left behind.Han Trystan—orphaned during the Sendok Calamity—carries the burden of rebuilding his parents' legacy, protecting his three younger siblings, and finding a cure for his dying aunt. But all of that hinges on one thing: awakening a powerful Skill.And when his time finally comes…> Name: Han TrystanSkill: Book FormationRank: EThe lowest rank. A joke. Practically powerless. Hope? Shattered.Until Han discovers the truth.His skill isn’t “Book Formation.” It’s something far greater.Creation. Not just of weapons or armors. But artifacts, pills, barriers—even other Skills.The world labeled him weak. But he was never meant to follow their system—he was meant to break it.Years later…> “Did I see that right...?”“Yeah. He just wiped out hundreds S-Rank monsters—alone.”“So the title ‘White-Black-Haired Monster’... it wasn’t exaggerated after all.”In a field of fallen beasts, one man stands untouched. Eyes calm. Power immeasurable.> “Weaklings.” Han mutters.Follow Han Trystan’s journey from the lowest-ranked misfit to one of the most powerful beings in the multiverse—and witness the rise of a legend the system tried to erase.