Hiro Ayato doesn’t have a single living relative. He ends up working in a Western confectionery sh...
MC (top) is on the streets when he's recruited a rich older man, ML (bottom) to be his "dog". The story is a lot sweeter than the premise sounds, and the "dog" thing isn't all that prevalent and isn't directly related to the intimate relationship they eventually develop. So not a pet kink thing or anything