Villain Is Bodyguard of Heroine's Poisonous Stepmother - Chapter 35: You are too active, no pleasure of revenge.

Breasts are NOT supposed to spontaneously grow for no reason.Women's personalities do NOT flip on their heads without warning. These are two things Tsunade believes wholeheartedly.Until Hinata's embarrassingly large girls begin to expand even bigger than before. Heralding her devolution from a sweet and innocent young lady into a foul-mouthed slut with tits like weather balloons. Tsunade intends to find out why.

The demon Sang Jiuchi woke up from a seal and found that he was bound to the Quick Transmigration system, and the characters he took over were all without exception, the worst villains.

Blackmailing the top streamer but ended up killing his own despicable tech genius…

The vicious true young master who framed the fake young master but suffered the consequences…

The murderous master who humiliated his apprentice but was killed…

The sinister mermaid who seduced the general and was slaughtered…

The hypocritical pope who deceived people and was burned at the stake…

- Description from Novelupdates

Apollo Kaiser, a boy who bore the unlucky fate of being unable to grow strong, was condemned by his family.

Discarded by his mother and abused by others, Apollo gives in to his rage.

However, this action results in his death. Many would believe it to be the end, but Apollo's death was a required catalyst.

The Demon Monarch System finds its heir and attaches to his soul, bringing him to a new world where he starts his journey to supremacy.

This difficult journey rife with conflict, conquest, and brutality shall serve as Apollo's temperance.

Watch as the heir of the Demon Monarch rises above all, conquers Sin, subjugates unthinkable enemies, and even brings about the destruction of worlds!

The rise of the next Demon Monarch begins...

When a boy in a medieval fantasy world wakes up with the memories of his past life, he discovers a secret buried deep within his mind—a highly advanced AI companion. This AI, a relic of his previous existence, holds the knowledge of a futuristic world filled with technology, science, and innovation.Armed with this unprecedented advantage, the boy embarks on an extraordinary journey to transform his medieval surroundings into a thriving futuristic utopia. From reinventing agriculture to creating advanced cities, he introduces ideas far beyond the comprehension of his peers. But his vision isn't without challenges—power-hungry nobles, skeptical commoners, and ancient magical forces stand in his way.