Jitsu wa Ore, Saikyou deshita? ~ Tensei Chokugo wa Donzoko Sutāto, Demo Ban'nō Mahō de Gyakuten Jinsei o Jōshō-chū! - Chapter 46 - Now you’ve done it.

The story is about a a hitman, Who dies because of his own recklessness and transmigrates into a game he used to play after his retirement as a hitman.I'm not gonna spoil any further, but i might answer few of your questions.Is MC overpowered?Nope, he'll become strong over time and all battle he'll fight will be because of his effort and techniques.Is there magic and adventure?Yes! It have both magic like normal isekai with adventure and fighting with monsters and many other things. There are other important things like “Essence Stone” But let's talk about it in the chapters.There will be harem?Not really, He will be in contact with many beautiful female and males but one waifu but i haven't decided yet.All i can say is, give it a try, I'll try my best to make it worth your time.

On the wedding night, when the bride hung herself, the handsome husband was sickly, the concubine was glaring like a tiger to see what her best next move would be. Shu Huan who time-travelled to the ancient times encountered such a mess.

The Sword Emperor’s challenges result in three of the Ten Venerables to be criticially injured. Three of the Seven Absolutes also die.“It wasn’t enough for you to come knocking at my door all alone; now you dare challenge me to a battle to the death? I did not think you to be so dull as to miscalculate others’ strength.””Neither the Ten Venerables nor the Yellow Lotus Temple’s Seven Absolutes of the orthodox sects had the ability to give me an answer. You are the only one left to ask.”Some may call the Sword Emperor old-fashioned, but he only seeks to be stronger as a martial artist.His endeavor eventually leads him to challenge the Heavenly Demon, the generation’s strongest man in murim. The challenge turns out to be the grand finale of his life.However, the Sword Emperor later wakes up as a member of the Cardenas family, the continent’s best swordsman family!

This is an absurd story of an empress who has traveled to modern times and still insists on rebuilding the Sannomiya Sixth Court without changing her nature.
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Su Junli was very depressed. She inherited a pair of red and green monster eyes, but she is a majestic queen, how could time and space change overnight, and the world was turned upside down, and the beautiful girl in front of her who claimed to be her “Mi Potato” The man called her to “grow vegetables”… You are the only one who grows vegetables, and your whole family grows vegetables. I am the queen!
Anyway, I can’t go back, but the thousands of subjects under the queen’s seat and the thousands of employees under the president’s command are actually the same in management. Since the original “Jun Li” is too useless, let her take over all of them , money, power, status, and of course, those high-quality men who make his heart beat…
An elegant and intellectual personal secretary, a sinister and cunning special assistant, a wild and domineering mafia king, a pure and natural childhood sweetheart, a ruthless No.
The Su family who killed without blood,
In the underworld filled with blood and gunpowder,
Talking and laughing about the ups and downs of the business empire,
Even if every step is frightening, one day, she will stand on top of the world!

- Description from novelbuddy