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 watched in disbelief as her body began to change shape, her skin turning dark, leathery and scaly like a reptile, her legs merging together before narrowing and elongating, as her neck extended as well.

Her face and head took the shape of a snake's, her hair shrinking into her hair as another snake head appeared at the end of her tail, what had been her legs just a few seconds ago.

No way...I didn't think there was anyone in the present who possessed a Contract with a Monster. A Contract can only be formed if a Monster consents to it, it's a mutual, two way agreement. Plus the Monster has to have a fairly high level of intelligence for it to work, a level that's usually only found in Demonic Grade Monsters like Izzy.

Chapter 166 - Attack(Part 3)