Maybe it's the son of the doggo, that or they got the dog years wrong ╮(￣▽￣)╭
the dog literally able to transform into human and you think the dog age is the issue here lol.
Lol
it's a magical dog ╮(￣▽￣)╭
I think its a spirit transfer of his crush to the dog
I know right LOL also using logic for comics these days seems silly.
I don't think the dog he took care when he was little is tanyi now because based on dog's age he would turn into an old gramp not a hot guy.