A Regressor's Guide to the Frozen Apocalypse - Chapter 21: Planning

Jiang Che traveled here and practiced for eighteen years to awaken the sign-in system.“Ding, the host signs in to Snow Moon City, and is rewarded with the inheritance of the Drunken Sword Immortal!”“Ding, the host signs in to Peach Blossom Island, and is rewarded with the Tai Chi Xuanqing Dao!”“Ding, the host signs in to the Yin-Yang Family Residence, and is rewarded with the dual cultivation secret technique Yin-Yang Heavenly Immortal Technique!”With the sign-in system, Jiang Che traveled around the Jiuzhou Continent and stood at the top of the world step by step!Li Hanyi: “Legendary man, look at the sword!”Huang Rong: “Woo woo woo, Brother Che, please let me go…”Wanwan: “My feet are fragrant and soft? My brother-in-law is a pervert!”Jiang Che: “It’s over, the whole Jiuzhou Continent knows that I am a scumbag!”

The Grand Sovereign, Kang Chul-In. The man who was so strong that he had to be defeated. Having lost, he must now go back in time to take up the challenge of becoming supreme in the Continent of Pangaea. Will Kang Chul-In be able to overcome the 9 other Grand Sovereigns in order to grasp the Continent of Pangaea within his hands?

The older young Lisko woke up and found that he had become an American. He took over his father’s ranch and began to live in the United States.

- 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.