Taboo Conquest of Lustful Emperor - Chapter 134 - 97 [R18]

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

The 7-year-old little crybaby met 11-year-old big brother who ran away from home.
[This man became the protector of redemption in his life]

The 16-year-old little dragon fell in love with a 20-year-old big brother.
[It’s a pity that the big brother didn’t recognize him as the little crybaby]

The 23-year-old single father and 27-year-old chief executive meets again.
[This time the little crybaby and his big brother are finally together]

Fortunately we met through hundreds of millions of people, Thank God, for letting us break through many obstacles and get back together again, falling in love with you and being with you again is the greatest fortune in my life.

- Description from Novelupdates

Arranged marriage? Or a child first and then love?After being defeated and captured, the dragon slayer Leon became the prisoner of the Silver Dragon Queen. Facing certain death, Leon made a desperate move.In a twist of fate, he impregnated the queen right before he was supposed to die.He thought that by doing this, he could condemn the queen to live with the shame for the rest of her life, fulfilling his mission as a dragon slayer.But two years later, when Leon opened his eyes, he found a little dragon girl with a tail beside him.“Daddy! You finally woke up!”Not only was Leon alive, but he had also become the father of this little dragon girl.After that, the Silver Dragon Queen started her relentless revenge. In a way that was truly “tit for tat,” she subjected Leon to non-stop bed exercises. But as a mere human, how could he possibly withstand the unending onslaught of a dragon's... desires?Leon decided to escape.However, every attempt ended in failure.Finally, under the queen’s threats and bribes, he resigned himself to being a stay-at-home dad.“Hm, you’ve been behaving well. I’ll reward you by having a second child with me,” the queen declared.Leon swore, “I’d rather die! I’ll leap from the Silver Dragon Palace, and I still won’t have a second child with you!”

This is the story of a modern sailor who was accidentally reborn as a soldier of the Brazilian Expeditionary Force, and finally became the largest plutocratic family in Brazil by virtue of his foresight.

- Description from novelbuddy