My Sister Insisted on Swapping Marriages, and I Became a Marchioness Instead - Chapter 170: What Are You Doing?

[ Mature Content Ahead! ][ Warning: Narcissist & Coldblooded Mc, Narcissist System ] [ You can Skip volume 1 which is simple slife of life + Smut, All Mc does is cuck the top four families and a sect master ][ The above suggestion is must if you hate slow pace smuts, also please purchase privilege and help me in Win-win, 180 coins for 50 chapters ][ Foot fetish & neck fetish ]This book has nothing special aside from how you can alter the fate of Main character.You can choose a option.Ding! Mc has found a girl.1. Add her to the harem2. Kill her.[ The choice lies in your hand]

You had taken up the Student profession

You had now reached level 7.

Acquired skills: elementary school knowledge, junior school knowledge, and senior high school knowledge.

You took the university entrance exam and scored full marks.

Your have been upgraded to level 9, and you have activated the profession-change interface.

You became a scientist and gained R&D skills.

You used R&D skills and gained space fortress-building technology.

You used R&D skills and gained starship technology.

You are now invincible.

“I want to be a true demon.”

A boy not older than 20 years wished as he looked at the sky.

After suffering from the trauma for many years, he finally gave up on life.

People called him ugly, demon, and hideous.

He bared with it, but today he finally broke.

With a piercing pain in his chest, he died.

When opened his eyes, Logan found himself in another world and inside the body of a demon.

His wish was granted, but at what cost?

He had no power and was the lowest among the demons.

No one to help, no one to be with him.

But it did not affect Logan. Because he had something else with him.

‘Sin and Virtue System.’

Guiding him towards his goal to become a true Demon.

Logan’s conquest has begun, so be a part of it.

Otherwise, you will miss him.

The true Demon!

However, is the MC the 'only' one to have a system?

Hm?

Read the fucking novel and find out!

Ren thought getting sacrificed and becoming a holy spirit was rock bottom—until he discovered his divine wife, the Goddess of Magic, is completely broke on faith power. That means his remaining soul would completely disappear.Turns out magicians are the worst believers ever!Ren has a crazy idea: if magicians won't pray willingly, make them pray to access the internet.Starting with a simple magic forum, Ren introduces this fantasy world to the addictive power of online connectivity. Want Q&A sessions on spell theory? Pray first. Need to livestream your dragon research? That'll be one prayer, please. E-commerce shopping for rare magical components? Prayer required for checkout.The moment Ren becomes the God of Technology, this world's whole vibe goes haywire.What begins as a desperate faith-farming scheme spirals into something far bigger. Soon dragons are running delivery services, apprentices are binge-watching magical tutorials, and even gods are competing for subscriber counts. Magic cars cruise the streets, magic trains thunder across continents, and when apprentices start wielding magic ray guns against seasoned magicians, everyone realizes this world has changed forever.From a simple forum to consciousness uploading and biological immortality—when technology crashes into magic, the explosion reshapes reality itself.After all, why choose between science and magic when you can have both?