Not sure. I'm confused too cuz I also thought that it's younger top x older bottom or maybe I could be wrong but I saw author's post on their X (Twitter) account about KR raw pre-released on B0mtoon and they actually said smth like
"all-ages story featuring the heartwarming tale of a large breed dog-like BOTTOM Dojin and a handsome prickly TOP Jeongwon"
That's why I got confused when I saw that
I think i just saw the post and here's what it translate:
"It's a BL story for all ages, featuring the story of Dojin, a large, younger dog, and Jeongwon, a prickly, handsome man."
And the tag from bomt00n which translate:
#BL #Straightforward #LargeDog #PricklySoo #InsensitiveSoo
So in conclusion i still don't understand hehe, mainly bcs idk hangul and rely on google translate T-T but anyway, regardless i really enjoy their dynamic ^^
Hi i came back again bcs i found new discovery ^^ So after comparing tags from another manhwa, this is what it shows with the hangul:
공 top/seme/gong
수 bottom/uke/shou
In bomt00n twt, the tags was written like this:
#대형견공 means Large Puppy Seme
#까칠수 means Sharp-tongue/Cold Uke
I also checked from another raw sites and it confirms my curiosity, so it's Dojin as a younger puppy top (๑•ㅂ•)و✧

I know this is all ages/shounen-ai but maybe y'all want to know soooo I just saw this on author's X account and they describe Dojin (Blue haired college student) as a large puppy BOTTOM/uke and Jeongwon as a prickly TOP/seme.
So yeah we got a prickly short older top x golden retriever younger bottom
Tho I'm still waiting for their creator's note to be translated if ever this was mentioned and don't attack me for mentioning their roles