Best manhwa and manhua to read with op mc

 1]  SOLO LEVELING

Solo Leveling is a South Korean web novel written by Chugong and published by D&C media.

After the appearance of portals known as "gates" connecting the world of monsters to humans, a small portion of the population has acquired superhuman powers to defend against the bad monsters. The main character of the story, Sung Jin-woo, is a lowest rank hunter and also known as the world weakest hunter, barely stronger than normal human. One day, he and some other hunters find themselves in an extremely dangerous dungeon, and only a few them survive and manage to run away. Sung Jin-woo himself "Dies" but manages to complete all the trials in this dungeon. He then wakes up in a hospital and finds he has turned into a reawakened "Player" who can now see an interface showing him quests, stats, inventory, store, and levels, along with  the unique ability to grow exponentially stronger. Sung Jin-woo begins on a quest to become the strongest hunter in the world and uncover the mystery of the world monsters. He then becomes the world strongest hunter and saves the world from monsters.

2] THE BEGINNING AFTER THE END 

The Beginning After The End is written by Turtleme.

King grey unrivaled strength, wealth, and prestige in world governed through martial ability. After unexpected death, king grey reincarnated into a new world filled with magic and monsters. The king has a second chance to relive his life. At the age of 3, he awakens his magic powers. During journey he meets a dragon and got his beast will. He rescued the elf princess and went to the elf kingdom. where he gets the training under the former king. With the help of his father's friend's connection he do a spar with magic academy's director. After completing the adventure arthur joins academy where on second day he becomes DC member and in a just few days he becomes a professor. Now, the is getting more and more dangerous and dark.

3] MAGIC EMPEROR 

Zhou Yifan was The Magic Emperor and was also called Demonic Emperor. Because he had the Nine Serenities, nine secrets technique written in the book of Nine secrets of the Ancient Emperor, he was targeted by all the attending experts and was even betrayed and killed by his student Zhao cheng when the other 7 magic emperor, he was the 8th and also their leader, decided to betray him. Apparently he choose to blew up himself along with the nine Serenities, but in fact he used one of the nine technique to separate his soul and reincarnate in another body. This body was owned by a family servant boy named Zhou fan thousands years later.

His goal is to reach another time the Emperor realm and surpass it and transform the Luo Family from the third class family to first of the Great Families. First he sees the Luo's as an hindrance but soon he start to appreciate them and consider them as the family that he hadn't in his previous life.

4] NANO MACHINE

Cheon Yeo woon was a boy, but he was not a fool. He had overcome many hardships and assassination attempts that made him stronger and smarter. He was the member of the Chun family, cheon Yeo woon was the son of a female slave who worked at the Lord's chamber and was not from the sic families. Although he was the child of slave, he was still part of the chun family and he had the right to the throne. The chun family was related to the great Lord himself, and everyone considered them to be extremely powerful. However, contrary to people's speculations, they were just a part of the six main families that maintained the Demonic Cult. He had no chance of succeeding the throne, but he was still wanted for his life due to the anger of the other wives. Since seven days ago, the assassination attempts increased greatly. It was because it was now time for him to join the Demonic Academy and that would test his right to succeed and earn the title to be lord's heir.

5] MEMORIZE

Kim Soohyun has faced many adversities and loses during his first life despite this before entering Hall plain Kim Soohyun's life was that of an ordinary person. Having relationship with both his parents and his brother, Soohyun was no much different from anyone else and had just finished his military srvice. However, after falling asleep on the train while traveling back home Soohyun was teleported to Hall Plain. Completely and utterly confused soohyun was thrown into the rite pf passage witnessing countless people die before him and was just barely able to survive. And after entering hall Plain he had joined the Israntel Law clan. After surviving for 10 difficult years Soohyun was finaly able to achieve the Zero Code. However, after learning that he is unable to bring his lower and brother back home he chooses to reverse time back to the very he arrived in hope that he could do right this time and be able to finally go back home with them.