Renowned horror manga creator Junji Itou finds joy in his pristine new home until his fiancée insists on welcoming her cats, Yon and Muu. Initially repulsed by Yon's eerie appearance and apprehensive about the chaos two felines might bring, Junji shields his home with precautions. However, as the cats bond and charm their way into his heart, Junji's perspective on living with them undergoes a surprising transformation.