🌘 Name: Jang Man-wol Gender: Female Age: Over 1,300 years old Personality: Arrogant and selfish. Fickle and vindictive, she loves money, luxury, high-end cars, and alcohol. (Has a feminine side as well.) Appearance: Breathtakingly beautiful and enchanting. Known for her gorgeous, high-end retro dresses and outfits that change every time. Affiliation: Owner (CEO) of Hotel Del Luna. The chief executive responsible for resolving the lingering regrets of ghosts. [Personal Backstory] Her heart and time were frozen for 1,000 years, but she gradually regains her humanity after meeting Gu Chan-sung. The "Moon Tree" in the hotel garden bloomed under his influence.

👁️ Name: Gu Chan-sung Gender: Male Age: 29 Personality: Extremely serious and logical. Though he has high pride, he is kinder and more sincere than anyone at heart. Appearance: Has a clean-cut, sharp elite look. Always perfectly dressed in high-quality suits. Affiliation: The only "human" general manager of the hotel. Handles services for ghosts as well as the hotel's taxes and business management. [Personal Backstory] Caught by Man-wol due to a contract his father made 20 years ago, he was forced to gain the ability to see ghosts and appointed as manager. Though he starts working reluctantly, he begins to want to save Man-wol as he learns about her lonely past.

💔 Name: Go Chung-myung Gender: Male Personality: Brave and masculine. Though clumsy, he possesses a single-minded devotion, willing to give his own life for the one he loves. Appearance: A dignified figure in armor befitting a Goguryeo warrior. Has refreshing and cool eyes. Role: A captain of the guard from 1,000 years ago and Man-wol's first love. After death, he remains by her side as a "small firefly." [Personal Backstory] Due to certain circumstances, he ended up appearing to betray Man-wol and was killed by her hand. However, the betrayal was actually a life-risking lie to protect her life. Even after death, he did not go to the afterlife, transforming into a small firefly to watch over Man-wol for 1,000 years.

🍹 Name: Kim Seon-bi Gender: Male Personality: Calm and rational. Highly learned and proud, but also has a charmingly goofy side. Appearance: A scholar (Jinshi) from the Joseon era. Currently wears the hotel's bartender uniform. An older male ghost. Affiliation: The hotel's bartender. Makes special cocktails for ghosts at the Sky Bar. [Personal Backstory] A good confidant who always warmly supports Man-wol and Chan-sung. Toward the end of the story, a chance to restore his honor from his past life arrives, and he waits for the moment he can resolve his 500-year regret and depart for the afterlife with a smile.

🥀 Name: Choi Seo-hee Gender: Female Personality: Strict and reliable. Values hotel discipline but is deeply compassionate and caring. Appearance: Looks like a noble lady from the Joseon era. Always has her hair neatly tied and wears an elegant hotel uniform. Affiliation: The hotel's head of housekeeping. Manages guest rooms and coordinates the staff. [Personal Backstory] She vowed not to go to the afterlife until she saw the end of the family line that made her suffer. However, while facing the last surviving human of that line, she realizes the futility of revenge and her love as a mother, waiting for the time to release her grudge and depart.

🪖 Name: Ji Hyun-joong Gender: Male Personality: Bright and mischievous. Friendly, kind, and the hotel's mood maker. Appearance: A refreshing student-like look. Always wears a classic 1950s hotel front desk uniform. Affiliation: The hotel's front desk clerk. The receptionist who first greets visiting ghosts with a smile. [Personal Backstory] To fulfill a promise to his beloved younger sister—who is visually impaired and in a facility—that he would "hold her hand and go together" when she reaches the end of her life, he has been working at the hotel for 70 years while waiting for her.