Itai no wa Iya nanode Bōgyo-Ryoku ni Kyokufuri Shitai to Omoimasu - Chapter 15

On the Yuan Continent, fantastic beasts and powerful cultivators exist. Their immense power is capable of shattering mountains and emptying oceans.

On this continent lives John Fenix, an unfortunate youth who is unable to cultivate and wield such immense power. He could only powerlessly look up to others and watch as they soared to heights unseen.

After a fortuitous encounter with a mysterious object, John finds himself able to cultivate. Determined to never feel powerless again, he sets out on a cultivation path filled with danger and excitement. Utilizing powerful cultivation arts found within the mysterious object, John sets out to write his own legend and ascend above all as the Immortal Asura.

Year 2056, in a city in the Yuan Jiang Su Jin area. On top of a ruined, shattered six story residential apartment sits a teenager wearing a combat vest, militaristic trousers, and alloyed battle boots. On his back is a hexagonal shield and equipped is a blood-shadow battle knife. He sits there silently on the edge of the roof. At this time, the sparkling sky was shining and there was a refreshing breath within the air that blew towards him. However, there was only silence within the ruined, deserted city, with an occasional howl that makes your heart skip a beat.

- Description from novelupdates

Eastern Jin’s Regent had icy, jade-like beauty and peerless talent. It was said that his admirers were enough to fill 3 entire cities!

Eastern Jin’s Regent was only second to the Emperor and temperamental, but rumors are that a young fox entered his bathroom, yet actually didn’t die. Eastern Jin’s Regent known for being mysophobic, never touching any females, but he only loved the fox. He even held the fox as he slept!

You fake god! I’m a human, ah! Turning me into a fox and transmigrating only to let some guy take liberties with me every day? Fine! Since its like that, I’ll eat from him, drink from him, use what’s his, play him, and bed him…

- Description from Novelupdates

Ajax was an orphan who survives a massacre along with his friends but unfortunately gets separated from them.

Fortunately, after a turn of events, he successfully gains a system which helps him increase his cultivation, but doesn't know what it is called.

But he knows one thing for sure, this system is very powerful and helpful in taking his revenge.

“Whoever you are, I am gonna find you”, Ajax mumbled himself with a disgruntled expression.

In a world where Summoning of an elemental spirit is done through a dream when they are 15 years old, Ajax with the help of a system and his summoned spirits sets out on a journey to seek revenge against the mastermind behind the massacre.