Fairy Tail: I Stole the Ryujin Jakka in My Sleepwalking - Chapter 185: FTRJ -

When necromancers perform a great ritual to summon an undead servant, they bring a powerful vampire into their world. And now, their fate is sealed as food, but for Klaus, this is just the beginning of his adventure. In a cruel world where people will do anything for power and immortality, he is already very strong and immortal, so what's left if not start a family and have fun stepping on arrogant people through the way?

He is very cold and passionate, Mu Yanwang, who means what he says. He has always regarded women as dirt but she, he has only spoiled her.

At first, he said with overbearing arrogance – “Even you are mine.” Afterwards, he gradually fell for the enemy – “Mine is yours.” Finally, he surrendered obediently, – “Ning Xiaofei, I’m also yours.”

Ning Xiaofei, his little wife. He just wants to put her in the palms of his hand, to love.

- Description from Novelupdates

Just like how everyone adored heroes in their childhood, a certain young man adored those powers hidden in shadows. After hiding his strength and living the mediocre life of a mob character by day while undergoing frenzied training by night, he finally reincarnates into a different world and gains ultimate power. The young man who is only playing at being a power in the shadows, his misunderstanding subordinates, and a giant organization in the shadows that gets trampled…. This is the story of a young boy who had adored powers in shadows possibly eventually reigning over the world of shadows in another world.

Ji Han, who was worried about his sister’s medical expenses, accidentally bound a money-making game.

The monsters in the other world, the puzzles in the film and television world, and the forbidden tombs in the legendary world.

Your game is too scary (love)!

What? 50,000 for completing the task? Kill a monster and give 30,000?

As an ordinary person, Ji Han shivered in the game, doing his best to complete the task to grab the head and get the much-needed monetary reward.

But in the eyes of others, he is the strongest alien warrior.

“Captain, the 10th team is really empty, they actually found a cowardly ordinary person.”

“Fart! All the monsters in the other world were killed by him alone. You fucking call this a cowardly ordinary person?”

- Description from novelbuddy