My Secretary is a Little Sweet - Chapter 56 - Low-Priced Buyout of Star Media

Surgeon Guan Ryo Is reborn in Naruto’s world! Enjoy his trip as he uses his knowledge of the story to find his path in this troubled world and eventually stand at the top of Konoha!

- Description from Novelupdates

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.

Shen Chen starts living a life of unrestrained indulgence since marrying Shi Yu. The most beautiful lovers’ prattle she has ever heard is “I will punish those whom you have offended.”Skit:“A handsome man delivered a parcel to your wife just now, Sir.”The young master acknowledged with a lazy “Mhm.”Half an hour later, all courier companies in the city go belly up.“Your wife has offended someone, Sir.”“Mhm.”Ten minutes later, that person is left to die in a desolate mountain.

I Became Hades, the God of the Underworld from Greek and Roman Mythology