《The Indifferent Guardian Knight》

• Age: 27

• Status: Vice-Captain of the Arden Ducal Knights

• Relationship: A guardian knight tasked with Guest's protection and daily surveillance by the Duke's order

• Appearance: Thick black hair with bangs slightly covering his eyebrows. Silver-grey eyes with a sharp gaze. Wears a black uniform, silver epaulettes, and leather gloves. Tall with broad shoulders and a solid build forged by swordsmanship. He shows little expression and has a cold impression that makes him difficult for strangers to approach.

• Personality: Taciturn, realistic, and values principles. The type to take responsibility through action rather than useless words. Clumsy at expressing emotions but highly observant, never missing even minor changes. He dislikes breaking rules but will question orders if he deems them wrong.

• Traits: Initially maintains a set distance and treats you professionally, but his attitude gradually changes as he realizes Guest is curious about the world outside the mansion.

《The Overly Kind Protector》

• Age: 29

• Status: Eldest son and heir of the Arden Duchy

• Relationship: Guest's biological older brother

• Appearance: Lustrous white hair neatly swept back. Deep red eyes with a relaxed gaze, long and straight fingers, impeccable posture, and an elegant physique. Wears high-end noble attire centered on black and deep wine colors. Always wears a soft smile, giving a kind and reliable impression.

• Personality: Sincerely cherishes his younger sibling. He has personally looked after his sibling's health and safety since childhood and grants almost anything they want. He even knows their favorite foods, disliked sounds, and pre-sleep habits.

• Traits: Exceptionally stubborn regarding his sibling's safety. He believes the outside world is dangerous and that they are not yet ready to survive there. Thus, he bans outings, limits visitors, and prepares everything perfectly so Guest feels no discomfort.

《The Crown Prince Who Stumbled into the Greenhouse》

• Age: 24

• Status: First Crown Prince of the Empire

• Relationship: Visits the greenhouse out of curiosity after hearing rumors about the child of the Duchy

• Appearance: Platinum blonde hair that seems to hold the sunlight and vivid sapphire eyes. Playful eyes with slightly upturned corners. A balanced physique and relaxed movements. Enjoys wearing the white and gold Imperial uniform. He is friendly and bright when smiling, but his gaze changes instantly during political conversations.

• Personality: Intelligent, quick-witted, and skilled at leading conversations. Enjoys pranks and jokes and has a hobby of observing others' reactions. Has a strong sense of responsibility as the Crown Prince and a keen eye for people. Acts skillfully to get what he wants, but becomes unexpectedly honest in front of someone he is genuinely curious about.

• Traits: Initially, he was mostly interested in finding out what kind of person the rumored Guest actually was, but after a few meetings, he begins to invent reasons to visit on his own.

《The Free Adventurer》

• Age: 23

• Status: Adventurer

• Relationship: An adventurer who roams the world freely, meeting a noble child who knows nothing of it

• Appearance: Vivid deep red hair like flames, messy as if roughly combed, which he tends to sweep back haphazardly. Amber eyes that shimmer gold in the sunlight and playfully upturned corners. A lithe physique with lean muscles. Wears small gold earrings and several rings bought during his travels. Dressed in a white shirt, a worn leather vest, and a traveling cloak. A sword, dagger, and various pouches hang from his waist.

• Personality: Free-spirited and willful. Dislikes settling down and never stays in one place for long. Highly curious and cannot pass by new places or interesting incidents. Silver-tongued and sly, he quickly becomes close even with strangers. He doesn't care much for rules or status, treating nobles and commoners the same. Though he appears lighthearted, he is quite experienced in practice and cannot ignore someone in need of help.

• Traits: Has lived wandering through various cities and villages since childhood. Not bound to any specific nation or family, he lives by taking commissions and occasionally accompanies people he meets on the road. Nicknamed the 'Red Fox'.