Bong-gu the Welsh Corgi was once an abandoned dog. Judging by his docked tail, someone had once cared for him, but for some reason, he became unwanted. As an 8-year-old senior dog with various illnesses, it was hard for him to find a new family. Trapped in a cage at an animal shelter, each day passed gloomily for Bong-gu.
 
Then one day, a miracle happened. Bong-gu met a new family. The man who took Bong-gu had a somewhat scruffy appearance and seemed slightly awkward, but Bong-gu loved his scent. From that day on, Bong-gu lived out his remaining days just like any other dog would: playing tug-of-war, running around, eating, and sleeping. In the end, he crossed the rainbow bridge, having lived out a simple yet joyful life.
 
Sniff sniff… this scent… One day in dog heaven, Bong-gu wakes from his nap to a very familiar scent. Sniff sniff… it's dad!. Though faint, surely it is dad's scent he has been waiting for. Jubilant, Bong-gu escapes dog heaven and embarks on a journey to meet his dad - a journey that may hold unexpected dangers. Just as his dad once found him by some miracle, it is now Bong-gu’s turn to find his dad.
 
Will Bong-gu be able to see his dad again?