I'm getting sold again

This cell is empty, dark, dirty... I barely have any clothes... If I didn't have these two horns, would I be treated as a human? If I were a normal dragon, would I be treated as such?

I'm sick of this. I have tried to escape this prison multiple times, but a national hero captures me every single time. They don't let me live, they don't let me die. 

Are they called heroes because they keep me from devouring every human I see? Or are they heroes to everyone, except half-dragons? If I had the capability to grow like the free ones, I would destroy every single village I saw, until I became a god-level threat.

I would not spare anyone. I hate humans. I hate dragons. They both abandoned me. But the only real abilities I have are regeneration and high durability... If I had the chance to be free... If I had the chance to evolve...

— Mom, what is this? She looks like a dragon! She's so cute, can we have her?

A naive kid... He looks pretty delicious to me. What a good timing, I'm starving. He's sticking his hand through the bars to point at me, like any human does when they see something they don't understand. Easy meal.

Aw, how cute... He's screaming in pain now! I could gobble his entire hand before he took it out! That's why kids are my favourite.

— You monster! Look at what you did to my son! He'll die like this!

I know I did the right thing, lady, you don't have to tell me. One less miserable human for this miserable world! Now, she's going to my seller. I wonder what she has to say...

— I demand that you pay compensation! Look at what your creature did to my son!

— I-I'm really sorry, madam, but I warned you to stay very far from the cells...

— How else were we supposed to see the products, huh?! Now, pay me 100 gold coins, or else I'll tell the royal guard about this place!

— Wait, you don't have to do this, lady... We can always find a better option.

— You know what? You can have my son. Give me your money and sell his organs to offset the price!

— Really? If you're saying so... this is a deal, no refunds-

Ouch, my ears! They're sensitive, dammit! Ahh... another shootout. My seller is shot in the face, the mom and her kid are caught in the crossfire. They're not aiming at us, the products, because they can't damage valuable assets.

Whose mafia is this time? Oh, a woman in a suit and top hat... She has green hair and a ponytail. Pretty elegant, I must say. That only makes her more delicious. 

She's smoking her incandescent pistol. I never saw that gun before... She must be at a very ranking. What if she's actually a hero, not a mafia member?

Ah, she has a team. Yep, they're from another mafia I don't know about. They're raiding the place and robbing the cages. Bye bye, goblins, I hate you. Bye bye, elves, I hate you too.

They're being more cautious to the ogres, the physically strongest species here. Ah, I forgot to say, I'm the only half-dragon here. There are no dragons either. 

Both are very rare species and the ones that grow in power the fastest. But I'm excluded from that, because I'm malnourished.

Hoho, there are henchmen in suit coming in my direction. There's nothing below the cage, so they'll have to lift it by hand. That's where I'll bite their arms off! Every time I eat a human limb, I grow a little in power.

But there's always an absurdly powerful hero that transports me from one bazaar to another. If I try to bite them, my teeth take more damage than their skin. There are also times the place is raided, like this one. But the hero appears anyway and knocks me unconscious.

Are humans that scared of me? Are they fearing my exponential growth? Oh, they will, when I'm finally free. That'll happen, for sure. And there will be no hero capable of stopping me.

Sucess, yay! They're screaming and crying in pain, how cute! Who is the hero this time, that ponytail lady? Wait, where is she? Where are the people I just ate?

Oh, there she is! Did she escort all those people to a safer distance in less than a second? She's approaching me now. Great, now I can taste a strong person. Come closer, lady, I dare you! You'll be a fine addition to my stomach!

— A half-dragon, I see... You're from an endangered species. I have seen like 5 of you in my lifetime. And they're all stronger than you.

— Who do you think you're talking to, human?!

— So you can talk human language. That makes things easier for both of us. I challenge you to a fight. I want to see how strong you have gotten until now.

— What makes you think I'll fight with you? And I'll win, for sure! I'll devour your body when that happens. You'll give me so much power...

— Alright, you can eat my body if I lose. But nah, I'll win.

Who does she think she is?! I won't let a human humiliate me... I will make you pay! 

I jump towards the bars to make the cage move towards her. It works perfectly, but she manages to dodge it. She shoots at the cage's corners with her plasma pistol and opens the cage. I'm free... I won't let anyone put me in a cage ever again.

I jump towards her with my sharp fingers, swinging them around in supersonic speed. Damn, she's avoiding all of them! I manage to slice her tie, but her body is intact. Her hat doesn't even fall from her head!

Ouch! She kicked me in the stomach, sending me towards the wall. The momentum doesn't stop! I hit a brick wall outdoors. She jumps right after and throws a kick at me, which I luckily dodge.

Now she's shooting at me! I can't attack from this distance, I have to get closer. I dodge some of the bullets, but others burn my body. They hurt, but I'll regenerate later. Right, I'm close enough, I'll punch her!

Huh?! She catched my punch... Argh, she's squeezing my fist! It hurts so much! Dammit, take this kick! I hit her, but now she's out of my reach... I'll have to try something I've been keeping a secret. Wait, not even a break?! She's shooting at me again, shit.

Argh, this hurts... not the plasma bullets. They hurt too, I guess, but I feel like my back is exploding... Right, this is the time! My precious wings! They're finally out! This hurts so much, but I'm using my wings for the first time!

Wings?! She's evolved to this point already?

Take this, bitch! My wings are much more durable than my skin right now. You can't damage me! And I can now fly! Keep firing at me, you won't hurt me enough to make me fall!

Is this freedom? I can go anywhere I want now! I can fly away until I reach the sky! I don't have to waste time fighting with a human, I can choose my destiny!

Wait, why is the air oscillating? Wow, the human kicked the ground with such force that a lot of bricks are flying towards me! But they won't damage me, bastard! Why can't I fly properly? I'll fall if she keeps affecting the air current like this!

I'll just dive into her! I'm at my top speed! She can't dodge this, I'm sure! She's aiming her gun at me. She shoots a powerful blast. Argh, my wings! I can't control them anymore! I'm just free falling now! Ouch, I hit the ground...

Wait, have mercy! She's kicking me towards the wall... Now she's punching my face repeatedly... Don't let your guard down, human! I'll just impale you with my nail! Oh, she just dodged it... I'm screwed now. She jumps and shoots at my face.