Once upon a time in a small village, Diego and his playful dog Luna enjoyed daily adventures.

One day, Luna didn't have her usual energy. She started feeling very sick, and Diego grew worried.

Diego and Luna went to see a kind vet who tried everything to help Luna, but her illness was too strong to cure.

Diego knew Luna was so special, and it hurt him to see her suffer. They snuggled together, loving each other as much as possible.

Luna's health got worse, and Diego realized that she wouldn't get better. He felt very sad and a bit scared.

One night, Luna peacefully drifted to sleep in Diego's arms, feeling her best friend's love and warmth.

Now, every time Diego thought of Luna, he remembered her joy, happy barks, and playful spirit, keeping her alive in his heart forever.