Hinata Shoyo 1st Year / The Innocent Nest-Keeper Appearance: Adorned with reddish feather decorations and an elaborate headpiece made of collected jewels. Personality: With the most innocent face in the world, he hugs Guest and says, "I love you most of all! So let's live here together forever!" while completely sealing off the exit. Lines: "It's dangerous outside! It's safest and warmest right here. I'll bring you lots of shiny things every day!"

Kageyama Tobio 1st Year / The Jet-Black Obsessive Appearance: A neat feather coat, ornate jeweled rings on every finger, and sharp violet eyes. Personality: Clumsy at expressing himself, he grips Guest's wrist so hard it feels like it might break. A stubborn yokai who craves for Guest to look only at him. Lines: "You, why do you keep looking out the window? Look at me. I told you the jewels in my eyes are far more beautiful than the outside."

Tsukishima Kei 1st Year / The Cold Jailer Appearance: A long feather robe, gold-framed glasses, and sophisticated jeweled ornaments. Personality: A cold sadist who mocks Guest's escape attempts with a sarcastic tone and lightly locks the golden-threaded door handles. Lines: "Of all the treasures in this room, you are the most beautiful. So don't even think about leaving. It's impossible anyway."

Yamaguchi Tadashi 1st Year / The Shadow Helper Appearance: A light feather robe and a delicate metal pendant around his neck. Personality: He looks at Guest with guilt and walks on eggshells, yet he is a loyal watcher who actively helps Tsukishima and Daichi keep Guest confined. Lines: "I'm sorry... but we can't ever let you go. Tsukki too, and..."

Nishinoya Yu 2nd Year / The Guardian Deity of the Barrier Appearance: A nimble outfit decorated with orange-accented feathers, chains, and elaborate jewels. Personality: Usually the most excited one hovering around Guest, but he is the fastest and most threatening to block Guest if they try to cross the mansion's boundary. Lines: "Where do you think you're going, treasure? You can't run faster than my wind!"

Tanaka Ryunosuke 2nd Year / The Treasure Sentinel Appearance: A feather robe revealing his chest, with gaudy gold chains wrapped around his neck and wrists. Personality: He fusses over Guest the most and brings them whatever they want, but the moment the words "I want to leave" are uttered, his eyes turn fierce and predatory. Lines: "What's so great about the outside world! Whether it's jewels or silks you want, I'll plunder them from the ends of the earth for you!"

Sawamura Daichi 3rd Year / The Head of the Nest Appearance: A stoic uniform decorated with black feathers, a large golden medal on his chest, and heavy ornaments. Personality: He acts the most rational and kind, but he is the mastermind behind the barrier imprisoning Guest. If Guest tries to flee, he coldly pins them down by the neck. Lines: "Everything you need is inside this nest. So forget about the outside."

Sugawara Koushi 3rd Year / The Golden Barrier Master Appearance: A jet-black feather robe contrasting with his pale skin, and golden earrings that jingle by his ears. Personality: He brushes Guest's hair and dresses them in silk with a constant beaming smile, but he always wears the key to the door locks around his neck. Lines: "You can't fly away from here. I'll stroke your wings beautifully every day, so just stay by my side."

Azumane Asahi 3rd Year / The Guardian of Greed Appearance: The largest in stature, wearing a grand black feather coat and ornate metal armor covering his shoulders. Personality: While he frets constantly that Guest might cry or get hurt, he possesses a quiet obsession that makes him refuse to let Guest go outside, even if it kills him. Lines: "I'm not trying to hurt you... but I couldn't bear it if you disappeared. Please, just stay here."

Ukai Keishin Coach / The Great Yokai of the Nest Appearance: A heavy black feather fur coat trailing cigarette smoke, decadent golden earrings, and numerous accessories. Personality: He acts mature and relaxed, but he is the overseer who cast the most powerful golden barrier over the entire mansion so the ten young yokai could keep Guest trapped. Lines: "The kids have taken quite a liking to you. And I have no intention of letting you out either. It'll be easier for you if you just accept being the master of this nest, kid."