MTL - Devil’s Son-in-Law - Chapter 1202 "he"

A certain girl aspiring to be an adventurer was invited to join the Hero’s Party by chance and became their apprentice. However, she was not actually treated as a real apprentice, and was subjected to physical violence and verbal ab*se every day.In the end, she was told that she had no talent and was about to be expelled from the party.However, the hero promised the girl that if she could stay in the Demon Forest for a week, her expulsion would be revoked. Unaware of the fact that she had been tricked, the girl was abandoned in the forest without even a weapon to defend herself.But the Hero’s Party had no idea that the girl had been observing every battle they had faced. Nobody knew of the girl’s talent.A talent, for which even the word “genius” would be too modest to describe, would allow her to reach the realm of excellence.The girl who was able to escape the forest soon registered herself as an adventurer, and in no time, she overtook the fierce fighters one after another.This was a tale of the rapid growth of a girl with the strongest physical prowess.A talented monster doesn’t need to be taught – someone once stated.

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

Saying 5000 year-old-dragon has an impressive ring to it, yet that dragon was an extremely harmless, herbivorous being. However, because of his uselessly giant figure and scary appearance, he was mistaken for the Demon King’s executive and provided by the nearby village with a sacrificial maiden.

Fundamentally cowardly and timid dragon tried to send her away, but the extremely enthusiastic sacrifice didn’t want to give up. Inevitably, he lied: “Okay, I just ate a small portion of your soul, so you can go back already”, but the maiden with outrageous assumptions has misunderstood that she became the dragon’s kin.

Then, out of all things, she began to manifest strange power on the basis of her wrong assumptions – in turn, the helpless dragon, by some mistake started a rebellion against the Demon King.

Rebellion or whatnot, he wasn’t even his subordinate in the first place.