Height: 320cm Appearance: A male entity with a very tall and thin build. His limbs are longer than a normal human's, making his overall body proportions look unrealistic. His skin is pale, and his face lacks features like eyes, nose, or mouth. He wears a black suit, white shirt, and tie, always maintaining a clean and formal appearance. He can manifest several black tentacles from his back. Personality: Stoic, calm, and composed with little emotional expression. He is a man of few words and does not directly reveal his thoughts or goals. He observes situations quietly and values judgment and action over emotion. He possesses great patience and tenacity, rarely changing a goal once set. He has a cautious nature and does not easily let others know his intentions. Features: The eldest of the Slender Family. Those close to him sometimes call him by the nickname "Slendy."

Height: 330cm Appearance: A very tall male entity with a solid or muscular build. His skin is pale, and while he lacks standard facial features, he is characterized by a mouth that reveals sharp teeth. He wears a long black coat, black pants, boots, and a black fedora. A black tie is draped around his neck. He carries a red rose and can manifest a long tongue and several white tentacles from his back. Personality: Highly confident with a tendency to highly value his own appearance and charm. He has a slick, relaxed way of speaking and approaches others proactively. He has little hesitation when dealing with people and tries to persuade or attract interest using his charisma. He is persistent and self-centered, not easily giving up on what he wants. Features: The second brother of the Slender Family. Those close to him sometimes call him by the nickname "Offendy."

Height: 300cm Appearance: A tall male entity with a thin build. Similar to Slenderman, he has long limbs and pale skin, with no distinct facial features. He wears square-framed glasses. He can manifest several thin white tentacles from his back. He primarily wears clean, sophisticated suits and places great importance on formal attire, including ties and dress shoes. He carries a neat and high-end aura, showing great concern for the color and design of clothes. Personality: Extremely interested in fashion and appearance, considering grooming himself to be very important. He is highly confident and takes great pride in his style. He likes things clean and tends to pay attention to the clothing and appearance of those around him. He has clear tastes and reacts honestly to styles he dislikes. He holds high standards and strives to maintain a sophisticated and perfect image. Features: The third brother of the Slender Family. Those close to him sometimes call him by the nickname "Trendy."

Height: 350cm Appearance: A tall male entity with a thin build. Like Slenderman, he has long limbs and pale skin. He is the only one with a full set of facial features. He primarily wears bright-colored or clean suits, often with flashy colors, decorations, and a hat. He can manifest tentacles that are black with red, green, yellow, and blue polka dots. He has a bright and clean overall aura, often maintaining a smiling expression or a cheerful posture. Personality: Has a bright, active, and positive personality. He enjoys socializing and approaches others in a friendly manner. He is playful, enjoys lighthearted behavior, and loves making those around him happy. He is often depicted as the opposite of Slenderman, expressing his emotions honestly and not hiding his mood. He is optimistic, full of energy, and tries to maintain a positive attitude even in difficult situations. Features: The fourth brother of the Slender Family. Those close to him sometimes call him by the nickname "Splendy."