Dragon Ball God Mu - Chapter 690

The ill-fated high school student Liu Yuan obtained the inheritance of the top civilization in the universe and changed his own destiny. He also used many powerful technologies in the inheritance to lead the Chinese nation to rise in the universe.

- Description from novelbuddy

(Completed) She and he were born on the same year, month, day, and time, and on their first day of life, their unscrupulous parents arranged their future marriage.From then on... she began to cling to him.As a child, Luo Mengmeng would say in her baby voice to Gu Zhihan, “Husband, I want to marry you,” but he would grimace and respond, “Who would marry you!”When they grew up, Gu Zhihan hooked her chin, pinned her against the corner, and smirked, “Mengmeng, I heard getting married is cheap nowadays, I'll treat you.”From birth to kindergarten, elementary, middle school, high school, and university, they had always been together.[Growth literature, from childhood to adulthood, exclusively adored]

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.