MTL - A Straight Guy’s Nightmare - Chapter 17 You are so scum!

Xueyue's life was filled with nothing but unfortunate events. Her mother died giving birth to her, her father abandoned her for another family, her stepsister stole her beloved, and she was framed for a murder she didn't commit.
Sentenced to death by beating, Xueyue thought her horrible life would finally end.

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.

After the ‘100-Year War’ between the Necromancers and Priests, an all-time genius who’ll shake the power structure was born. “Am I a rare case or something? Do I have talent?” A potential beyond all imagination. He obtained his father’s undead army and entered the great Necromancer school of Kizen that divided the continent. Geniuses are geniuses, even when gathered among the elites. The research community was flipped on its head by the appearance of a new case. Professors wouldn’t leave him be alone, wanting to make him study directly under them. Officials from all over the kingdom and heads of organizations fidgeted over whether to scout him. “Professor! When can I make a Lich?” “Gimme a break. How talented are you? You’re crossing the line, honestly.” A genius among geniuses had appeared.

Traversing into another world, Zhang Xuan finds himself becoming an honorable teacher.

Along with his transcension, a mysterious library appears in his mind.

As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weaknesses will be automatically compiled in the library.

Thus, he becomes formidable.

“Emperor Zhuoyang, why do you detest wearing your underwear so much? As an emperor, can’t you pay a little more attention to your image?”

“Fairy Linglong, you can always look for me if you find yourself unable to sleep at night. I am skilled in lullabies!”

“And you, Demon Lord Qiankun! Can you cut down on the garlic? Are you trying to kill me with that stench?”

This is an incredible story about teachers and students, grooming and guiding the greatest experts in the world!

- Description from Novelupdates