Greatest Of All Legends - Chapter 16: Prelude to a True Beginning

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

After his divorce, Lu Qin acquired a street food stall and quickly rose to fame, becoming a culinary sensation known for his unmatched cooking talent. With his young daughter by his side, he roamed the city streets, setting up his stall and making a living. His irresistible dishes attracted crowds from all over, earning him widespread recognition.Passerby: “Most places sell fried noodles, but Lu’s are worth every penny.”Food Enthusiast: “We’ve organized a group of over a thousand people just to track down where Lu sets up his stall each day.”Chef: “I’ve tried countless times to recreate his dishes, but I just can’t match Master Lu’s perfection.”One day, an old man called the police, claiming the street food stall downstairs was suspiciously good, hinting there might be something addictive in the food. The police launched an investigation, only to find…Meanwhile, Shen Muyan’s upscale hotel restaurant was flooded with complaints, forcing her to reluctantly seek help from her ex-husband.Girlfriend: “Your ex-husband is impossible to reach! When can I book him for an exclusive interview on my gourmet show?”Shen Muyan: “He still hasn’t agreed to remarry…”A celebrity chef from South Korea traveled to China to film a culinary show but ended up spending the entire season documenting Lu Qin’s street food stall instead.

Summary Version 1:

The mysterious boy Ling Chen is saved by a little girl as he lay on the street dying. Years later, he strikes a deal to save this savior-turned sister and enters the virtual world. In a future Earth where advanced warfare has forced nations to settle issues virtually or else suffer the consequences, Ling Chen bursts into the scene and goes from unknown to legend. Yet all is not as it seems, for Ling Chen has a dark past, and there is a greater mystery at hand behind this virtual world.

Summary Version 2:

To save his terminally ill little sister, Ling Chen enters the newly released virtual game world and joins a small gaming studio comprising entirely of women. From now on walking upon his path towards the pinnacle. An ancient, evil item almost forgotten by history, the “Lunar Scourge” helps forge his unsurpassable legend, and causes him to unknowingly step upon a path that is destined to be punished by the heavens, the way of the shura.

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.