In his previous life, he wrote novels, and now he has finally transmigrated into another world—only to discover that he has become a Demon King with no health bar???
Since he’s this invincible, he might as well reenact every trope that appeared in the novels he wrote in his past life.
Hero vs. Demon King! Arch-nemesis! The invincible me farming every day! The arrogant young master getting overthrown by the maid…
Wait, hold on! I’m the Demon King…
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Chapters List
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Emeralds
Chapter 58: From Demon King to Saint Child
200 
Chapter 57: The Poisoned Sword and the Saint Child
200
Chapter 55: The Demon King Finally Gets Serious
200
Chapter 54: She Grows Stronger Every Time
200
Chapter 53: The Hero’s Misunderstanding
200
Chapter 52: The Moment the Mask Was Torn Away
200
Chapter 51: The Bronze Labyrinth That Noticed Him
200
Chapter 50: The Labyrinth That Wouldn’t Open from This Side
200