The Game's Extra: Azhriel Odyssey - Chapter 7: Poison.

Golden scales do not belong to the shallows; once they encounter the storm and clouds, they transform into a dragon!On his wedding night, Su Luo faced betrayal by his brothers and his wife. In a desperate situation, he received the legacy of Cultivation.He cultivated peerless celestial techniques, controlled life and death with Yin and Yang, grabbed destiny against the heavens, met a confidant of stunning beauty, and from thereon, he became undefeated by the world!This world, because of his existence, shivered!

Rumor has it that the empire’s first general, Shen Chengfeng, has a quirk that does not allow anyone to touch his body!

But on a certain day, not only did he touch people, but also slept with a certain person!

…

For countless generations, it is rumored that the empire’s well-known Xiao family only had sons who became generals. But the fact is, they actually have a daughter named Xiao Jing!

However, she must dress as a man to become a young soldier.

…

Anybody who will have a contact with Shen Chengfeng’s skin will die. This is the secret of the Shen family that cannot be disclosed.

Xiao Jing, however, was careless and touched the general’s body everywhere!

…

The Shen family is well aware of the fact that Shen Chengfeng’s both hands are like strong sulfuric acid. Once touched, even the bones will not be saved.

Xiao Jing, however, was not paying attention and touched him all over!

…

The Shen family understood that the body of the imperial general is special and cannot have a wife and children in this life.

However, one day, the general suddenly announced that he is going to marry a certain soldier!

In other words…

Xiao Jing didn’t have a choice but to disguise herself as a man to become a soldier. Unexpected events led her to have physical encounters with the empire’s most distinguished general, Shen Chengfeng. However, unknown to the public, this military master has a mysterious secret – anything that he touches would all turn to ash! Surprisingly, Xiao Jing was an exception!

How will our hardworking Xiao Jing keep her little secret hidden when Shen Chengfeng is constantly keeping an eye on her? And how will our formidable general react when a certain soldier is not affected by his supernatural ability?

- Description from Novelupdates

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

In this world, orphans or just anyone without any hope for this world can apply to become a “walking target”. Their sole purpose is to be a practicing dummy for the students of the sect who train to become “Demon Hunters”. These students need “walking targets” to test their training on living, walking beings of flesh and blood.
In exchange, they will be provided with food & shelter.
Their existence value is lower than a slave, but if they manage to survive a few years they can receive a life long pension.

Xiao Han is such a “walking target”. One time he witnessed a powerful Demon Hunter disposing a demon. When the demon died, a fragment of the demon that managed to escape entered Xiao Han’s heart. No one saw that, and even Xiao Han himself only felt some discomfort for an instant.

But that thing in his heart soon gave Xiao Han visions, and the first one is of a cultivation method which allows Xiao Han to absorb damage to enhance his body. A perfect cultivation method for a “walking target”.

- Description from Novelupdates