Aimdaqs

Following a less than ideal life and a harrowing death, the protagonist finds himself in the presence of a God, offering him a customized reincarnation into a world of his choosing, with his memories intact 

He decides to reincarnate into a world of Magic and Monsters, intrigued by the notion of being able to use fantastical powers that did not exist in his previous world

Having grown up in a stifling high society and unloving family environment in his previous life, he chooses to reincarnate into a more simple life, opting to be a Commoner instead of a Noble, despite the oppressive class system present in the world of his reincarnation

Following a detailed customization of the powers he chooses to acquire, he reincarnates into a peaceful, loving family in this new world, with the name Larrk Stryker, in a small village well away from Noble society

While Larrk's fascination with Magic and the other powers he possesses in this world, along with the desire to be able to protect himself against any threat that might arise, drives him to master these abilities, all he really wants is a nice, peaceful life, one that's free of any strife or tragedy

But whether or not such a life can be achieved in this world, remains to be seen, as the countless unfamiliar elements of this strange new world only give rise to countless more possibilities, both good and bad...

Reincarnation Tribulation - All I Want Is A Peaceful Isekai Life

I can hear people murmuring behind me...ugh, what a pain. From what I know, there's no age limit to become an Adventurer, not officially, anyway. It's rare, but not unheard of for children to register.

"U-uh...are you being serious?" Responded the receptionist uncertainly, looking kinda bemused.

She was about average height with a slender build and attractive curves, had dark brown hair with bangs that covered her forehead, light red eyes, and looked like she was about in her early-twenties or so. She's totally my type.

"Yeah, I am. So, what do I have to do to become one?" I asked her.

"Well, uh-...ahem, we conduct a simple exam in order to determine whether a candidate is eligible or not. There are two options for the exam, which you can choose...the first, is to complete a series of quests, and depending on the results, you will be assigned an appropriate rank.

Chapter 43 - Qualifying Exam(Part 1)