Naruto: The Strongest Kakashi - Chapter 426 - Hidan

Xia Yuqing is a shut-in+fujoshi from the 21st century. After an accident, she transmigrates into the body of a young princess forced into a political marriage to another country.

Gradually, he found that he couldn’t leave this adorable kid, as well as his beautiful and stubborn mother.

Xia Xingcheng was about to get engaged to her childhood sweetheart, but her vicious half-sister, the daughter of her stepmother, set a trap for her out of jealousy. After a nightmarish night, her fiancé thought that she had cheated and canceled the engagement. Heartbroken, she chose to go abroad alone for a living.

Five years later, when her father threatened her with her grandmother’s health and forced her to return to attend her sister’s wedding, she had to come back with her four-year-old son. Although the child had been accidentally conceived, he was the only comfort during struggling to survive abroad. Coincidentally, they had run into the child’s father, Mr. Sheng, on the plane. But neither she nor he was able to recognize the other. However, perhaps blood ties were that mysterious, the kid sensed that this handsome and powerful man was his father! Although she had never thought of looking for the child’s father, fate had arranged for him to appear whenever she was about to be harmed by her shameless family. Gradually, he found that he couldn’t leave this adorable kid, as well as his beautiful and stubborn mother.

Huang Dan’s pain nerve is innately different from the ordinary people. A little tore in his skin can cause him to sweat all over his body painfully to the point of him unable to make a word out.

Somehow, he began to cross world, following Mr. System to do the tasks…

In the first world, Huang Dan realizes what it means to die painfully and to live to die again.

TL’s summary:
MC suddenly transmigrated and is bind to a system, requiring him to solve mysteries. Born with a higher degree of pain sensitivity, he met different people in the different worlds and learns what kind of emotion smiling is.

- Description from Novelupdates

A dancer who was killed by a serial murderer found himself occupying the body and taking on the life of Brian Morse, a patient with anti-social personality disorder. As Brian, he has the look, he has the brain, he has the charisma, but he also has something that somehow always attracts psychopaths…[The story mentions 3 reality shows and crossovers with the American drama series Dexter. SLASH]

- Description from Novelupdates