From Idler to Tech Tycoon: Earth - Chapter 35: Marketing

Li Ran traversed to another world and became the Holy Son of a Demon Way Sect.

The system has awakened, and the first task released is actually to fall in love?

The Sect strictly forbids relationships between men and women.

Li Ran took the risk of being expelled from the Sect and wrote a love letter to his junior sister, but it was sent to the master by mistake!

He is the strongest soldier of the Chinese Special Forces, and the ultimate demon in the eyes of the enemy. Now he is disarmed and returned to the fields, returning to agriculture and forestry, hiding in remote mountain villages and enjoying a peaceful life.

However, gold always shines, pure white and rich beauty wants to marry him, the president of Meiyan wants him to be his lover, and the hot police flower always wants to take him as his own, which makes the village chief very headache.

This is the life story of a young village chief with a stunt, soaking in the most beautiful beauties, drinking the strongest wine, and vigouring Niucha’s life.

- Description from novelbuddy

I became a professor in a game by accident. To make matters worse, I even messed up the difficulty settings. Now, I’m stuck playing on Hell Mode. A world on the brink of war with the Demon King. An Assassin Department where mu*der is legal… as long as you aren’t caught. I thought I’d have to claw my way through just to survive in this wretched place, and that was the case at first. But nowadays… “No matter how hard I try, I can’t be like you, Professor… How do you do it?” “Please… become our god.” “What do you know? What is it you know? Why do you make me want to live…?” One by one, everyone at the academy began to obsess over me.

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!