MTL - Fairy Tail: The Nameless Grim Reaper - Chapter 1 Magic Swordsman and Hiccup's House~

A great demon king who came from another world to conquer Earth. To save the Earth, Li Luyou could only first take care of this great demon king… a little girl proclaiming herself Her Imperial Princess.

- Description from Novelupdates

Through an accidental transmigration, Gu Huan became the youngest Alpha general in the novel. He is handsome, aloof and powerful, admired by thousands of people.

Even if he was a villain, this was a proper, awe-inspiring character design.

Gu Huan was so happy!

Looking at the needle holes in his arms, the haggard eyes, and the home that had been dismantled into an open-air convertible.

He suspects that he is actually an addict.

Doctor: No, you are just a very ordinary Omega who used inhibitors during the fever period.

Gu Huan: …you are kidding me.

Doctor: An Omega of your age who has not been marked is very likely to be leashed.

Gu Huan: …I believe this.

To survive. Kaolin (senior) Flower (single dog) can only apply for marriage online.

Marriage Self-Description: Older, hot-tempered, not guaranteed to not to beat someone in heat, not guaranteed to not to beat someone to death.

In the end, someone actually came to this painful marriage request, and it was the prince who wanted to eradicate him, the villain, in the original text.

——The so-called wolf dog, when it hates you, it is a wolf, when it likes you, it is a dog.

- Description from Novelupdates

The Spirit Network, known as【Deep Sea】 connected five continents as human civilization surged forward; yet, they were oblivious to the impending eternal night. With the Extraordinary Awakening, the edifice was about to collapse. Flesh is weak and pitiful, how could one ascend? The story began when Gu Shen, an ordinary youth, received a ruler that bore the truth. He peeled back the corner of this extraordinary world, becoming the largest moth among the thousands that dashed into the flames. If winter is coming, I will climb against the steps, overturn the thrones of kings, shatter the crowns of falsehood, destroy the scepters of injustice. I will become humanity's last, Bright Barrier.

Suzuki, an adult programmer, suddenly notices that he’s been thrown into a different world while wearing a casual clothes at level 1. He gained high levels and treasures after using the 3 times use-disposable-magic, Meteor Shower, once. After that he intends to do different world “sightseeing tours”? He meets 3 beast girls, beautiful purple and black haired sisters, and an eccentric blonde haired elf girl along with various people during his trip. Although there are occasional fighting with demons and demon lords, this is a heartwarming fantasy story at heart.