My Princess Holds Superpowers - Chapter 558 is unreasonable.

A long time ago, the decayed main god space collapsed and disintegrated, and the wreckage was scattered in parallel universes, giving birth to a new space…

Countless ‘story worlds’ under control have also fallen into the void, regained freedom, runaway out of control, elevated to reality, and turned into reality.

At the same time, these “worlds” are polluted and corroded by the void, giving birth to greater fear and filth…

…

The space of birth feeds on the world.

They compete with each other, their tentacles penetrate through dimensions, invade different time and space, search for the legacy of the main god, drive the apostles to be minions, greedily tearing, seizing, devouring, and reclaiming one world after another, so that they can return to greatness.

…

The innocent eating melon and white waves with the legacy of the Lord God accidentally got involved in the parallel universe “Paradise of Fire” during a cross-border call.

After forcibly binding the demi-human blood, he became an excellent tool man who can repeatedly die, starting the legendary ‘dimension invasion career’.

- Description from novelbuddy

[Trait: Protagonist's Desire][Acquire one trait possessed by the protagonist you reincarnate into.]A killer physique, a hypnosis app, becoming a shota...The protagonist has gained the ability to reincarnate into characters from adult games and make their traits his own. NO NTRRomance | Fantasy | Harem | Multiverse | SMUT | R18 | Reincarnation | NTL

Ye Muyu, an elite of the modern company, got married and had children directly after time travel. She became the lady of an ancient scholar and the mother of two children, and she also found out that there was a “sister-in-law” who hated her very much.

Not only that, but there is also a ‘reborn’ female supporting role Tang Rou who covets her position everywhere.

Tang Rou: “Your position is mine, and I will be the first-rank madam in the future.”

Ye Muyu looked at the dark-faced man in front of him, and nodded calmly: “Okay.”

A certain man instantly protected Ye Moyu: “You It’s my wife, don’t even try to get rid of me, idlers, get out.”

The son hugged Ye Muyu’s thigh: “Go away, my mother is so nice, if you dare to bully her, I will bite you to death.”

The daughter held Ye Muyu’s arm Arm: “You are a bad person, my mother is the best mother in the world, if you dare to speak ill of my mother, I will report to the police.”

Seeing the happy family of ‘Ye Shi’, the reborn Tang Rou secretly hated her Grinding: It shouldn’t be like this, everything has changed!

- Description from novelbuddy

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.