Toaru Majutsu no Index - Volume 20, Chapter 3: The Stand-Off Against the Wall of Doubt. Great_Complex.

Zhou Yun transmigrated to a fantasy world and was bound to the God Tier Epiphany System. He could enter into a state of meditation and achieve epiphanies that others desired regardless of what he did.

Other cultivators immersed themselves fully in hardcore training in order to achieve some improvements in their swordsmanship.

On the other hand, Zhou Yun achieved enlightenment in swordsmanship by merely picking up a sword and playing with it a little. His swordsmanship attained perfection in an instant.

Other cultivators trained hard in order to break through to the next plane.

Zhou Yun merely swept a glance at the fallen leaves in the courtyard. Then, he had an epiphany and broke through to the next plane on the spot. He had insights into everything in the world, and his rate of plane progression skyrocketed.

When other cultivators finally became powerful existences after going through various hardships, Zhou Yun had already become the supreme existence through having countless epiphanies.

Li Chengfeng, a scientific research genius of the 21st century, traveled through the Tang Dynasty and turned into Li Shimin’s six-year-old son?

  In the god-given god-level bear boy system, Li Chengfeng grabbed Li Shimin’s beard and started mad at Fang Xuanling and Du Ruhui, but there was nothing they could do about it.

  Li Chengfeng used his genius scientific knowledge to solve natural disasters by diverting water from the south to the north, and the hybrid rice developed by him can produce 2,000 catties per mu.

After destroying the Turks and subduing Goguryeo, Li Chengfeng was conferred the title of God King of the Tang Dynasty at the age of six.

It can be said that Mo Chou has no confidant in the future, who in the world does not know the king?

- Description from novelbuddy

It’s said that the prince of virtue had almighty martial arts. It’s said that the prince of virtue had the most handsome appearance in the world. It’s said that the prince of virtue was brilliant. But all was legend! A fire ruined his wonderful appearance and his legs. Even the talented bride under their marriage agreement were replaced furtively. Ye Liu-li was his bad-luck substitutive princess. She went a long way to graduate from Medical University and had her internship with pain and joy. Who knew that in order to save a suicide patient, she fell off the building and crossed time into a “chessman” of prime minister. She had also been married to the disabled prince replacing her elder sister. On the wedding night, when most other couples were having their romantic night, she was thrilled. It didn’t matter. Revenge never came too late. She would never let go of any of them who entrapped her or harmed her.

- Description from Novelupdates

Mo Rao was born into a family of military doctors. Her parents had risked their lives to save Fu Ying’s grandmother, so the latter forced Fu Ying to take Mo Rao in as his wife. Mo Rao always knew that Fu Ying had a dream girl named Qu Ru. This girl failed to marry Fu Ying as she desired because Fu Ying’s grandmother stopped them. After their marriage, Fu Ying was very considerate of Mo Rao. They even had high compatibility especially in bed. Fu Ying would always find himself deeply immersed in Mo Rao’s tenderness.

Until one day, Fu Ying said, “Qu Ru has returned. Let’s divorce. I will transfer the property I promised you to your name.” Mo Rao said, “Can we not divorce? What if… I’m pregnant…?” Fu Ying answered heartlessly, “Abort it! I don’t want anymore obstacles to appear between me and Qu Ru. Also, Qu Ru has leukemia, and your bone marrow happens to be compatible with hers. If you’re willing to donate yours, I can promise you anything.” Mo Rao said, “What if my condition is that we don’t divorce?” Fu Ying’s eyes turned cold. “Mo Rao, don’t be too greedy. Even if I promise you for Qu Ru’s sake, you know full well that I don’t love you.” The words ‘I don’t love you’ stabbed at Mo Rao’s heart like a knife. Her smile suddenly became twisted and she was no longer the docile woman she used to be. “Fu Ying, this is the first time you repulse me so. You call me greedy, but aren’t you the same? You want me to divorce you so you can be with Qu Ru? Sure, I’ll agree to that. But you’re even dreaming that I’ll save her? Don’t forget, there’s no such thing as getting the best of both worlds in life, just like you and me.” Then Mo Rao left. Fu Ying actually felt suffocated, and this feeling drove him mad.

When Mo Rao appeared once more, she had become a dazzling star. When she appeared before Fu Ying, holding hands with her new beau, Fu Ying couldn’t care less and said, “Baby, didn’t you say you would only love me?” Mo Rao smiled faintly. “Sorry, ex-husband. I was mistaken back then. You were only a replacement. I actually love someone else.”