Part-timer Ma Sung Jun is employed at a cafe that facilitates animal adoptions. On a specific day, Ma Sung Jun finds a stray dog of an unfamiliar breed after his work shift and whilst making his way home. Though cats typically win his affections over dogs, he unaccountably takes the dog home and labels it Tani. Afterwards, he goes out to acquire provisions for Tani's welfare but comes back to discover the animal has been metamorphosed and is no longer a dog.