Shiba, the once-beloved dog of Taketora's grandfather, comes back in the form of a human (yet with dog ears and tail intact) to repay the kindness his master showed him. However, Taketora's grandfather passed away twenty years ago, so Shiba decides to focus his appreciation and affection on Taketora. Shiba is clumsy, cute and eager to help around the house. How can Taketora not come down with a bad case of puppy love?!