Yuri, who lost her dog Natsukichi three years ago, is studying to become a veterinarian. One day, she rescued a stray dog from the side of the road and brought it home. While taking care of the dog she’s reminded of nostalgic memories of Natsukichi. When she woke up, she saw a handsome guy sleeping next to her. Her deceased pet dog came back in the form of a human?! And wants to have XXX with her!?