Senior brother raised a loyal dog with his own hands, but his attack and resistance attributes are unknown.
The senior brother originally raised him with the mentality of raising a pet. He liked him, was kind to him, and pampered him, but in the end, he was still just a pet. But in the pet's heart, his senior brother is everything to him.
So the pet became sad and ran away from home.
Then the senior brother quit.
...
Okay, I don't know what all of the above is, I am incompetent as a copywriter…