Honami Sonoda suffers from insomnia due to overwork at a black company and the death of his dog, Taro. Being unable to sleep as usual, he goes for a walk and notices a large dog in a weakened state in a neighbourhood park. Remembering Taro, Honami took pity on him and took him home, falling asleep next to him. But, when he wakes up, there is no dog next to him. Rather, a mysterious young man... could he be the dog from yesterday? Therapy love between a werewolf looking for a mate and an insomniac dog-lover!