The Courageous Puppy on a Mission to Rescue the Villainous Sister (Novel) Chapter 1 is available as a full text chapter. Published August 25, 2025 and updated March 16, 2026.

1.Prologue: A Dog Dies
“Coco, please say something……”
In the garden where we happily took walks every day, my sister was crying.
I could feel her warm hand stroking my white fur.
I wagged my tail at her as usual, but I had no strength in my body.
‘What’s wrong with my body?’
How many times has it been? My sister buried her face in her knees and sobbed.
Her fingers don't hurt, does she chatter.
It was strange that I couldn't smile brightly as usual.
‘This can’t be happening. I have to nuzzle up to my sister!’
That’s how I make her smile.
I couldn’t even fetch the ball these days because my body felt so heavy.
Since my sister had taken the time to come to the garden, I wanted to bring her favorite flower.
‘I have no strength in my body.’
Instead of bringing her a flower, I barely lifted my head from her lap.
I saw her purple eyes filled with tears.
“Coco. Huh? Why didn’t you tell me you were sick….”
Before I knew it, tears were streaming down my sister’s face.
Unable to speak, I sniffed and smelled my sister’s scent.
‘It smells sad. Why is my, our sister sad?’
Whenever she was with me, I could only hear her happy heartbeat.
‘Is it because I’m weak? Because I’m losing fur and becoming ugly, so you don’t like me anymore?’
As I pondered with my small head, my sister hugged me tightly and murmured.
“Coco.”
I felt a familiar warmth.
Born as a dog, I had never been held by a person before, the first warmth in my life.
I snuggled deeper into my sister’s arms and whimpered softly.
“Mmm……”
My sister placed her palm over my mouth.
“Why… why did I have to be someone who wanted to hear you talk? We could have lived together for so long.”
“Awoo……”
“If you weren’t so kind and were a bad dog, I wouldn’t be so sad to see only you go when others leave.”
A tear fell on my cheek.
I am a companion dog who knows my sister's tears very well.
But, I could tell when my sister was sad faster than anyone else.
When the human world became scary, when I stood blankly, still, on the street full of square carriages and scary horses.
I saw a very, very fancy carriage stop in front of me with a screech.
That day, I will never forget the moment I met my sister's eyes, who had her face out the window.
"What's going on, Mara?"
"Dolphins, Princess. Why are there horses suddenly in front of the carriage? I'll take care of it right away."
"......Dolphin is a dog?"
"Woof!"
I could smell a very deep loneliness from my sister, who was staring intently into my black eyes.
Just like me, who had been alone for a long time with no one to talk to.
"......Bring it into the carriage."
"Yes? Well, it seems dangerous with the Dolphin. Princess, if you need a companion, there are other strong and cute puppies..."
"Bring it to me, now."
Chloe, the name of my sister, the first one I ever had.
My sister said that my eyes were very pretty because they were so black.
I was old, but she asked if I had a pretty bobbed hair and was small.
She said I was pretty with my clear color and plump, fair skin.
'She even gave me a name. Coco.'
"What good is a good place if my sister isn't there?"
I couldn't see the white stars in the night.
Although I was a dog, I sometimes explored the human world with my dog friends.
Whenever that happened, my sister would hear unfamiliar words from people.
She heard annoying stories from people calling her 'Madam', and she became completely isolated from her family, and there were many forced things that made her miss appointments.
But, but......
My sister didn't care at all, like the most depressed person in the world.
She did the bare minimum of work and didn't just lie down.
"There's a dark aura around my sister!"
Originally, the light that I used to give her like pine cones had completely disappeared.
But I was able to see my sister's face shining happily......
"Now I can't do that even if I'm next to her, so I'm worried about her."
When I thought of my sister, I kept not eating anything and not being able to do anything.
I lived like that for a year. After living in front of my sister's most depressed face, the dog god who governs our dog star came to me.
The Retriever god, who had shiny golden dog fur, looked at me and said.
"You are a very pitiful child. You can take walks in the dog star heaven, eat sweet potatoes, and see things."
"Um, God! What about being born as a human again?"
"What, a human?"
"Yes! Because my sister told me to be born as one in the next life!"
"That's not possible. What about the things you do every time a human baby is born?"
"What are the things that a baby does?"
"Good abilities?"
"First, the ability to communicate with animals, and second, the ability to see the future."
"Wow......"
"And finally...... intelligence that sparkles and rises in matters related to your sister."
The moment his hand touched me.
My fluffy body shone white and sparkling.
"This is the complete blessing of God."
After the light that enveloped my entire body disappeared.
The dog god patted my head hard, saying I was a good dog, and then my eyes spun.
Other dogs gathered around me, all saying something.
"Please tell my brother that I love him!"
"Can you tell my mom that I'm sorry I couldn't stay by her side for a long time?"
"Tell my dad to work hard too!"
As I listened to the noisy farewells of my dog friends, I nodded my head so hard that my ears fluttered.
"Trust me! I'll definitely tell them!"
I'm going back to meet her with the 'ability to see the future' equipped.
My sister, whom I love the most in the world!
