MTL - Great Medicine Without Borders - Chapter 524 make it clear

Jiang Hao, who is a high school student, was struggling for his college entrance exam…However, this day, a super decomposition system appears in front of him suddenly.By decomposing different kinds of items, he can unlock and use any types of talented abilities, even the power of controlling the time and space.“Ding! Decomposing a math book, obtained one crystallization of mathematics!”“Ding! Decomposing an ant, obtained the ability: Superpower!”“Ding! Decomposing a spider, obtained the ability: Danger Sense!”“Ding! Decomposing a female ghost, obtained the ability: Divine Footwork!”……From that moment on, Jiang Hao began his journey of adventuring this world. This strange world wasn’t simple as he thought.With the Super Decomposition System’s help, he explored the truth of world step by step, and unlock the secret in the deep.

When Su Jiu dies on her eighteenth birthday, she transmigrates into a novel about painful love and becomes an adorable four-year-old child.

After getting shot, Lucas, a serial killer, reincarnated into the novel world as a tragic villain with the same name, Lucas Ciffer.

Lucas Ciffer was supposed to be the Holy Kingdom's successor to the throne, but his demonic appearance and the powers he possessed terrified the entire kingdom. A white-haired boy with red eyes and pale skin, together with his dark powers, got persecuted and exiled by his own family. Not to mention that in the future he was destined to die by the hand of the hero.

Lucas fell from holiness, and, with the serial killer's bloodlust and knowledge of the future, he decided to prove the world right.

Yes. I could be a villain; no, in fact, I WILL BE THE VILLAIN.

Her parents died in planned accident by her uncle. They used her in every way they can. They planned to sue her so she wont take her fathers company back. They want to destroy her life making her penniless. No one knows that she is the not the same girl who was played as puppet in their hands. Five years changed her a lot. Now she is a hidden genius still acting pityfull to take revenge.