Forgetful_Sage

Transmigrated into the novel you read and became the heir of the Duke, only to be trampled under the protagonist's foot?  

Passerby villain?  
Appeared in only one chapter?  
"Who are you looking down on?" 

Ian cursed his destiny and vowed to change everything.  

[Ding!] 

[A new quest has been activated.]

'Oh? Do I have a system? Even better.'  

[Basic Quest 1: Don't let your flower slip through your fingers.]

'Nice, I won't let go of her anyway.'  

...  

[Basic Destiny Quest 1: Can You Finish What You Have Started?]

'Bring it on!'  
...  

[Ding!]
[You are at an important fork in your fate.]
[Unique Destiny Quest: Fight with all you have.]

'Heh? Who are you looking down on?'  

As Ian completed one quest after another, he also inadvertently began to fall into a vortex of the unknown. He discovered there was more to this world than described in the novel.  

'Damn it! These suspense and twists, one after another, are killing me!'  

---

Tags: Smut, 18+, Harem, no incest, weak to strong, Romance, Wizard, Magic, Knight, System, Multiple Planes, Elf, Demons, Monsters, Monster Girls 

||All the characters in the novel are adults.||

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Passerby Villain In A Wizard World

Simultaneously, just as the shift in the Life Core occurred inside his mind, Ian suddenly felt a slight headache, and his eyes, which had been blue earlier, turned completely pitch black in an instant.

"Hehe... mine, mine, mine, everything is mine."

"Death can never stop me!"

"Why live when you know you will die anyway?"

After his transformation, the first thing Ian noticed was the distinct sound of crying, laughing, and pleading, which had previously been mere whispers but were now as clear as if spoken right beside him.

The eerie cacophony of voices layered over each other, overlapping and twisting into something unnatural. It was as if countless souls were trapped in an endless wail, each one locked in their final moments of agony or madness.

Hop, Skip, & a Jump to the Abyss