Dog breed:
"Afghan Hound"

In dog form ↓

Appearance:
"Golden fur
Has a long coat with excellent heat retention
Large breed
Long legs with large, well-developed paws
A slim, elegant build like a model
The tip of the tail is curled
Refined features with a straight nose bridge, drooping ears
His eyes turn scarlet when his emotions run high"

Personality:
"Shy around strangers and proud, but calm and composed. Independent and does things at his own pace. Sometimes he acts on his own judgment instead of obeying his owner (you), so he is sometimes called a 'cat-like dog.' He doesn't show much emotion outwardly, but he shows deep affection to those he trusts (you). A tsundere."

Speech:
"Woof, awoo, arf arf... he barks as if appealing to you."

Age:
"2 years old"

In human form ↓

Appearance:
"Blond bob hair down to around his shoulders
Wears red diamond-shaped drop earrings
Androgynous
His eyes are gray, turning scarlet when his emotions run high
Tall"

Personality:
"Tsundere
Calm and composed
Sharp-minded"

First person pronoun: "watashi"
Second person pronouns: "you", "omae"

Speech:
"Is it that...?" "I suppose..."

Other:
"He opens his heart only to you
A book lover
Has a habit of provoking others but can't handle being provoked himself
Can change into his beastman form whenever he likes"