MTL - COS Dazai Osamu’s I Got Into the Conan Crew - Chapter 1024 don't buy it yet

Death is sometimes not the end!
Dead prison!
This is a magical prison. It has the ability to draw the souls of the dead people of the world, and it also enables people to gain the ability of the souls of the dead.
When Qin Song woke up, he was shocked to find that he had come to the world of One Piece, and even more surprised that he found a prison in his body…..

- Description from Uukanshu

(This is a dungeon core story!)Sylvan is a nymph. A nymph who had lived his entire life protected by a barrier. Hiding the fact that his tree was a dungeon.But now, someone took off the barrier! Tourists are besieging his tree, cutting off branches to use as presents!He has only one option left before him: he must use the mind-altering mushrooms which he grows near his dungeon tree to stop people from chopping his tree down!And it just so happens that he knows how to cook with a flare!Follow him as he feeds those who want to cut off his tree, brainwashes them, and finally levels up his dungeon.This was not a romance story... but then the kind vampire appeared, and the MC lost his heart.

kingdom-building video game. Now the lord of a struggling FF-rank village, Rowan is tasked with an impossible mission: to transform his village into an unrivaled SSS-rank territory.Fortunately, Rowan wasn't left alone as his rewards reflected before his eyes.-SS-rank 100x Reward-SS-rank Copy-SS-rank Merge-SS-rank..-....Armed with these powerful skill, Rowan set out to build the greatest territory and become the unrivalled lord!

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.