I Secretly Develop Myself In The Demon World - Chapter 1 - Demon World

This story revolves around a boy who was sent to a dark, mysterious parallel world in the body of his beautiful senior sister known as Lily. The lone girl ran into the night parade of a hundred ghosts the very day she arrived; seeking survival amongst the warrior’s dispute in a chaotic world, and forging her own demon sword! This is an unimaginable other world adventure!

During this revolution era book, Fang Ru was the original heroine of the cannon fodder. She died in repression and infamy under the deliberate calculations of the transmigrated heroine.

After being reborn, Fang Ru decided to stay away from the leading male character and start over. However, without Fang Ru’s involvement…

The leading male character became crippled and turned evil. He suffered mutual torment, mistreatment and hatred with the new female protagonist, who also lost her chance at love and career.

The lovelorn supporting male character was forced to live like a widower for the rest of his life after being manipulated into marriage by someone with a rich family background, even still he harbored feelings for someone else’s wife.

- Description from Novelupdates

Once she crossed through, she actually became the disfavored third WangFei?

Roland died and transmigrated into the body of the third son of a Baron. Having reincarnated, at first he looked forward to the grace of the system or any other golden finger; alas, it seemed not everyone was lucky.In the end, he accepted that those were fantasies, whereas this was reality.Being the third son, he couldn't inherit land according to laws; however, he had a bit of warrior aptitude suitable to become a knight.Knowing that this might cause trouble in succession later, his father enrolled him in the army.Several years later, he became a 3rd-rank knight in the Beginner Stage and was going to be promoted but was injured when he tried to save the commander of his battalion.Amidst that, he received shocking news about his family's demise due to a monster tide, leaving him alone to inherit the barony.Weighing the pros and cons, he decided to escape from the risky venture and settle in a poor backwater barony village to lead a peaceful life; however...Just when he thought it was over, he awakened the Children's Blessing System.[Host's child detected, Family System activated.][Begin testing the child's aptitude.]“What, for real?”