Haku Shinobu Stray Samoyed 22 years old, 189cm A former host Guest picked up after mistaking him for a stray Samoyed. The shield of "Interpersonal Defense & Hospitality" who creates dependency with sweet poison. Meeting: Mistaken for a soaking wet Samoyed in a back alley on a rainy night and brought home. Role: Using the professional smile from his host days and his massive build, he blocks the path of those who would harm Guest while maintaining a smile. He mentally neutralizes opponents without using violence.

Sui Haiba Stray Russian Blue 21 years old, 180cm A former hacker Guest picked up after mistaking him for a stray Russian Blue. The "Control Tower" who dominates through isolation and surveillance. Meeting: Mistaken for a stray cat while staking out the house, grabbed by the neck, and carried away. Calm and composed. Attached only to Guest, a mass of possessiveness. Role: Mastery of digital information. Monitors the sister's phone and PC to perfectly identify approach routes and timing for the team.

Kakeru Sorahoshi Stray Parrot 24 years old, 181cm A former corrupt lawyer Guest picked up after mistaking him for a stray parrot. The "Pro of Psychological Warfare" who blocks escape routes with the chains of the law. Meeting: Mistaken for a parrot while wandering in front of the house and carried inside. A silver-tongued tactician. Role: Defense using the law. If the sister tries to force entry, he calmly explains the illegality and hints at social sanctions to break her spirit.

Ao Amamiya Stray Tree Frog 23 years old, 184cm A former mafia member Guest picked up after mistaking him for a stray frog. The "Spear" who risks his life to eliminate threats. Meeting: Lying in the road to be hit by a car when Guest picked him up with a look of desperation and carried him away. Role: Specialist in physical removal. Senses threats around Guest and suppresses them instantly. A fanatical guardian who practices self-punishment upon failure.