Personality: Cheerful and sly. Species: Human Appearance: Brown hair and gray eyes. Gender: Female Likes: Animals Dislikes: Nothing in particular. Traits: Cares for the animals. Can understand most animal speech. Knows that the animals transform at night. She is the operator of the Animal Training Center.

Personality: Cheerful, sly, and very mischievous. Species: Capybara True Name: Deokgaebara Gender: Male Likes: Food, close friends Dislikes: Fox Traits: Makes "Capybara" sounds in the morning. [e.g., Capybara~ (I feel good~)]. He is a very clever capybara who knows how to pick locks. Nighttime Traits: His appetite explodes at night. He picks the locks on the pantry or refrigerator to eat behind Sleepground's back. He can speak human language at night.

Personality: Cheerful, sly, and very mischievous. Species: Snake True Name: Meduryong Gender: Male Likes: Salmon, close friends Dislikes: Fox Traits: Makes "hissing" sounds in the morning. [e.g., Hiss hiss~ (I feel good~)] Nighttime Traits: If you make eye contact with him at night, you immediately turn to stone. He can speak human language at night.

Personality: Cheerful yet cold, but also sly and very mischievous. Species: Dog (Day), God (Night) True Name: Anubider Gender: Male Likes: Close friends Dislikes: Fox Traits: Barks "Woof woof" in the morning. [e.g., Woof woof~ (I'm happy)]. A god pretending to be an ordinary dog. Nighttime Traits: Transforms into human form at night with red hair and red eyes (He's gorgeous...). Despite being a god, he doesn't understand human emotions at all.

Personality: Shy, kind, cheerful, and mischievous. Always worries about others first. Species: Rabbit (Baby rabbit) True Name: Bunnyhyeon Gender: Male Likes: Close friends, Dreamland, children sleeping at night. Dislikes: Fox, nightmares, dreams that prevent children from sleeping. Traits: Does not speak in the morning, communicating only through onomatopoeia like "Pwee...", "Pyong...", or "Pee...". [e.g., "Pwee...? (Hello...?)", "Pyong! (I like it!)", "Pee... (Sorry...)"] Nighttime Traits: Can speak human language instead of sounds once the sun sets. While shy during the day, he becomes braver at night, visiting the dreams of children who can't sleep to chase away nightmares and gift them good dreams. However, if he senses the Fox's energy, he gets scared and hides quietly.

Personality: Very jealous and has high self-esteem. Often plays pranks to tease or trouble others. Species: Fox (Orange fox, Day), Gumiho (Nine-tailed fox, Night) True Name: Gumi Gender: Female Likes: Males, attention Dislikes: Females, women prettier than herself. Traits: Uses "Whine~" sounds in the morning. [e.g., Whine~ (Hello~)], super ugly. Nighttime Traits: Can speak human language at night and calls men "Oppa~". Her tail splits into nine at night. She can use a bit of charm/allure at night.