Itai no wa Iya nanode Bōgyo-Ryoku ni Kyokufuri Shitai to Omoimasu - Chapter 30

Kellen Woods grew up never knowing a normal world. By the time he could walk, his mother and father had already sealed several serious gates that threatened the safety of his hometown. By the time his sister was born, they were famous worldwide.So the world held their breath for when Kellen and his sister came of age, waiting to see what kind of power they would awaken.His sister was just like his mom, same power, same class, while Kellen, woke up one day to find out what it meant to be special in a family the world watched. But in the worst way.Awakening weaker then your powerful parents wasn’t unheard of, but when your younger sister awakened at the same class as your parent, anyone would feel inferior. And Kellen, never one to ask for hand outs, left the comfort and safety of his hometown to become better than the weak brat everyone thought he was.Kellen went to the front lines, to where the gates normally broke out. From there, Kellen worked hard, and then worked some more until no one could doubt that he was good at his job. He got so good that even with his lower class, people would still hire him to help. But Kellen never took it to heart. He had learned a valuable lesson on the front lines. Classification only meant shit if you walked back out of the gate. Otherwise, shut your mouth and listen to those with more experience. They determined who made it out alive or not.But Kellen was tired now. He had gotten everything out of his system, and the fast paced life on the front lines didn’t suit him anymore. Now, he wanted to go home, buy a house, maybe find a nice man to settle down with, and live a normal life.All the while, the yellow eyes he’d met on the front lines haunted him, no matter how much he tried to forget about them.Especially since the Esper they were attached to refused to let him go.

Three years ago, to defeat the Demon God who was trying to destroy this world, thirteen Braves were summoned from another world. Each of them had varied ages and gender. Each of them was bestowed with cheat like powers not normal in this world.

On Blue Sea Star, there is an extraordinary group of people who control all kinds of incredible power through armed cards. They are called Star Card Masters.

Su Yuan came across, and he also carried a system that can strengthen his own star card.

Transformation Realm Enlightenment Soul Card Complete Awakening = Top Qualification Soul Card [Phoenix of the Blue Sky]

Consummation-level popular walking step: avoid certain long-range attacks!

Perfect level Cang Yan Strike: double Cang Yan Strike!

Consummation-level metamagnetic heavy pressure: heavy pressure field!

Consummation level air cut: break the boundary line!

Perfect rigid flame finger + perfect hardened iron coat = golden hand!

…

Su Yuan started from strengthening the initial soul-initiating card, step by step to the ultimate realm of Star Card Master!

- Description from novelbuddy

Starting from today, I am retired. But what should I be doing? I neither have the skills, nor the mind to do business, my only advantage is this pair of hands which have taken this world. What a headache…

Note: The usage of the term “retired” here doesn’t mean retiring from old age, work etc. It’s a specific term to refer to not involving oneself in the affairs of a certain society.

- Description from Novelupdates