Routa Okami, a worn-out office worker, yearns for a new life as a cherished pet in a wealthy family after his exhausting demise. Surprisingly, a kind goddess fulfills his wish, transforming him into a pampered pup living a leisurely, nap-filled existence with a loving owner and endless treats. However, as time passes, Routa undergoes a startling transformation, realizing he is not a dog but the colossal and fearsome wolf king Fenrir, with a massive body, sharp fangs, and a commanding presence.