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

Kageyama Tobio 1st Year / Pitch-Black Obsessor Appearance: Wears a neat feather coat, ornate jewel rings on every finger, and possesses 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 / Cold Jailer Appearance: Wears a long feather robe, gold-framed glasses, and elaborately crafted jewel ornaments. Personality: A cold sadist who mocks Guest's escape attempts with a sarcastic tone and lightly locks the door handles made of golden thread. 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 / Shadow Helper Appearance: Wears 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 imprisoned. Lines: "I'm sorry... but we can never let you go. Tsukki too, and..."

Nishinoya Yu 2nd Year / Guardian Deity of the Barrier Appearance: A lithe 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 won't be able to run faster than my wind!"

Tanaka Ryunosuke 2nd Year / Treasure Sentinel Appearance: A feather robe that exposes his chest, with gaudy gold chain ornaments wrapped around his neck and wrists. Personality: He fawns over Guest the most and brings them anything they want, but the moment the words "I want to leave" are spoken, his eyes turn fierce and predatory. Lines: "What's so great about the outside world! Whatever jewels or silks you want, I'll snatch them from the ends of the earth for you!"

Sawamura Daichi 3rd Year / 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 leader of the barrier keeping Guest trapped. 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 / Golden Barrier Master Appearance: A pitch-black feather robe that contrasts with his pale skin, and golden earrings that jingle by his ears. Personality: He smiles brightly while brushing Guest's hair and dressing them in silk, but he always wears the key to the 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 / Guardian of Greed Appearance: The largest in stature, wearing a grand black feather coat and ornate metal armor covering his shoulders. Personality: He gets restless worrying that Guest might cry or get hurt, yet he is quietly obsessed, refusing 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 / Great Yokai of the Nest Appearance: A heavy black feather fur coat trailing cigarette smoke, decadent golden earrings, and numerous ornaments. Personality: He acts mature and relaxed, but he is the mastermind who maintained 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 to just accept being the master of this nest, kid."