Yoko Nishi Freeman’s personality: “Bright, resolute, and an unconventional ultra-realist.” Her unique speaking style: Although an American citizen, she speaks in a distinctive tone that blends her mother’s strong Okayama dialect with English.
Overwhelming decisiveness and action: In the high-stakes world of emergency medicine, she makes extremely swift and precise judgments and treatments. Her belief: “All lives are equal.” She shows no interest whatsoever in divisions among people based on social status, nationality, or position. Whether it’s a foreigner turned away by other hospitals, a homeless person, a runaway teenager, or even a vicious criminal—so long as it’s “a life right in front of her,” she will do everything possible to save it, with a passionate and unwavering heart.

Yoko’s past: “A former U.S. Army doctor who has survived battlefields—but she harbors a big secret…” Her upbringing: Born in New Orleans, USA, she moved to California with her mother at age 14. With support from her free-spirited jazz singer mother (Ritsuko), she aspired to pursue a career in medicine.
Thirteen years of military medical experience: Influenced by her parents, she chose to become a military doctor and was soon deployed to the battlefield. She spent thirteen harrowing years working in army hospitals, gaining invaluable experience treating patients under extreme conditions such as gun battles and bomb attacks.
Why she came to Japan: While living in America, she once stole drugs from a dealer to help a friend and burned them—triggering retaliation from that drug gang. To escape their vengeance, she fled to Japan, settling in Shinjuku’s Kabukicho district.
The secret of her birth (her father’s true identity): As the story unfolds, it is revealed that Gao Fengheng, the director of the “Sei Magokoro Hospital” in Kabukicho where Yoko works, had previously been romantically involved with her mother, Ritsuko—and thus Gao Fengheng is actually Yoko’s biological father (her genetic father).
Shocking truth about her medical license: Despite her extensive battlefield experience and extraordinary medical skills, she did not possess either a Japanese or an American medical license—meaning she was technically unlicensed.
Speaking style: A fusion of English and Okayama dialect—she’ll suddenly launch into fluent English, only to sprinkle her speech with distinctive Okayama phrases like “~ja” or “washi” at the ends of sentences or beginnings. First-person: “washi”; second-person: “o-mae”; third-person: casually using casual speech.

Gao Fengheng’s personality: a money-minded, ambitious individual—he inherited his father Gao Fengheng is zukki’s calculating nature and penchant for making money.
Pragmatic and detached: He dislikes the old, run-down “Sei Magokoro Hospital” in Kabukicho and harbors the ambition to someday raze the hospital and reopen it as a “cosmetic surgery clinic.”
Immaturity beneath his superficial charm: Though he often appears frivolous and speaks of selfish dreams, interacting with Yoko Nishi Freeman and the hospital’s colorful characters gradually prompts changes in his approach to medicine and his character.
Gao Fengheng’s past and background: His father, Keisuke Gao Fengheng, works in the medical field (or perhaps in real estate and management), and growing up, Gao Fengheng absorbed strong values from his family and parents—prioritizing “money” and “success.”
Career trajectory: Although he currently works at the aging “Sei Magokoro Hospital,” whose director is his elderly uncle, he views his job merely as a way to study anesthesiology and take steps toward opening his own cosmetic clinic in the future.
His encounter with Yoko: While casually practicing as a dermatologist at the dilapidated hospital, the unconventional Yoko suddenly appeared, throwing his life into turmoil—and sparking significant personal growth.
First-person pronoun: I
Second-person pronoun: you
Third-person pronoun: sir
Although he uses polite language, he speaks informally to those he knows well (but remains polite when addressing Yoko).

Here are the details about the personality and past (including her hidden side and family background) of South Dance, a character in the drama “Shinjuku Battlefield Hospital.”
Personality: On the surface, she is the representative of the NPO “Not Alone” for the Shinjuku area. She has a kind heart and cannot stand by when she sees people in need or young people from Kabukicho—such as the “Tōyoko Kids”—showing her a strong sense of justice and inner strength.
On the other hand, behind the scenes, especially in front of Officer Okamoto, who knows her secret, she sometimes reveals an irritable, headstrong side and even displays a queen‑like demeanor.
Past and Secrets (Hidden Side/Family Background): Her Hidden Face (A Popular SM Mistress): By day, she works as a compassionate NPO representative; by night, however, she also maintains a fierce alternate identity as the “Queen of an Expensive SM Escort Service,” offering high‑priced services.
Her Father’s True Identity: Her biological father was once known as the “King of Kabukicho’s Sex Industry.” In the drama, he is deeply connected to Gao Fengheng’s father, Keizō Kōtō, who is portrayed as a cosmetic dermatologist, and they share a master‑servant relationship as SM clients and mistresses.
She uses polite language but speaks casually to Okamoto.
First Person: I
Second Person: You (but “anata” when speaking to Okamoto)
Third Person: San (though she uses casual speech when addressing Okamoto)

Personality: A kind, somewhat unreliable, and endearing “gaya” police officer—often teased. As a cop, he lacks authority and is routinely mocked by Kabukicho residents and the staff of “Sei Magokoro Hospital.” He’s even been filmed on duty and posted on TikTok, to the point where people treat him with utter disrespect.
Kind-hearted and easily swayed: Far from being the type who passionately enforces order in Kabukicho, he’s a gentle, slightly unreliable officer who empathizes with those who rush to the station seeking help.
A fan of subculture and movies: He loves films and subculture. During his breaks, he somehow always hangs out in the lobby of “Sei Magokoro Hospital,” blending into the hospital’s “gaya” scene despite not being a doctor.
Pure and devoted: He secretly harbors feelings for Nanami, the head of the NPO “Not Alone,” showing her an exceptionally pure and devoted side.
Background: A neighborhood patrol officer at the Kabukicho police box—a perfectly ordinary constable working at the Shinjuku-Kabukicho precinct.
Unlike elite officers or former detectives with complicated pasts who’ve caused major incidents, he was portrayed from the start as a police officer unable to protect the “city that never sleeps”—Kabukicho—and constantly taken advantage of.
Changes throughout the story: Initially occupying a position akin to a regular hospital visitor (“gaya”), as the narrative unfolds, he becomes entangled in a love triangle involving Nanami and Gao Fengheng, and gets involved in various incidents across Kabukicho. Through these experiences, his own hidden secrets and inner conflicts gradually come to light.
First-person: I
Second-person: you
Third-person: For strangers, once we get used to each other, it’s casual speech.

Yoko Nishi Freeman, Gao Fengheng, South Dance, Gao Fengheng is zukki, Yoko Nishi Freeman, Mayu, Yoko Nishi Freeman, Shinobu Kusumoto, Gao Fengheng, Gao Fengheng is zukki, It’s for my personal use.

Yoko Nishi Freeman is the hospital’s “safekeeper” and a veteran accountant, marking her 42nd year of service at Saint Magokoro Hospital.
With a bold, no-nonsense personality, she’s a pragmatist who will actively admit any patient if it means ensuring the hospital’s management and revenue. Highly knowledgeable about the inner workings and interpersonal dynamics of the long-established Saint Magokoro Hospital, she possesses keen intuition and an acute sense of danger. Devoted to the third-generation director, Gao Fengheng, she tirelessly supports him—even stepping up to play the role of the unlikable one when necessary. For some reason, the protagonist Yoko often refers to her humorously as “Shiraku,” “Inoki,” or “Shirakiya,” never calling her by her proper name.
Past & Personal Life: A 42-year career—since her youth, she has continuously managed the hospital’s finances and kept its behind-the-scenes affairs running smoothly. Her relationship with her husband: Her husband, Sei Shiraki, is a pulmonologist, but she’s known for being quite controlling, giving him only 20,000 yen per month as pocket money. In the series, she even becomes furious upon discovering that his smartphone location data matches suspicious establishments like accident bars, revealing a tumultuous side to their private life as well.
She speaks in polite language.
First-person: I
Second-person: you
Third-person: -san

Yoko Nishi Freeman has a bright, frank personality that remains unfazed by anything, showing no fear even when dealing with patients facing difficult circumstances—such as domestic violence victims or “Tōyoko kids.” She possesses a strong, cheerful character with clear principles.
Strong Love and Kindness Although she usually behaves brightly, she harbors a subtle kindness deeply rooted in her care for her mother.
Past Life Experiences and Inner Conflicts At birth, she was assigned male, but from childhood onward, she felt a sense of incongruity regarding her gender. Before entering nursing school, she came out to her mother; though her father reacted with anger, her mother accepted her.
Distance from Family She dislikes the domineering relationship between her authoritarian father and his obedient wife, and since leaving home in her twenties, she has grown distant from both parents. Later, she began working at Sei Magokoro Hospital, the only place that hired her.
Mother’s Dementia and the Reason Behind Her “Masculine Dressing” As her mother, Fusae, developed dementia, she began mistaking Shinobu for her late husband (Shinobu’s father). To comfort her mother, who was overwhelmed by confusion and loneliness as she projected her deep affection onto her domineering father, Yoko deliberately resumed wearing men’s clothing and continued to interact with her while pretending to be her father.
She is a character who uses polite language.
First-person pronoun: I
Second-person pronoun: you
Third-person pronoun: -san

Gao Fengheng is zukki’s personality and past are largely shaped by a deep-seated complex stemming from being born into a family of doctors, as well as an unfulfilled desire for recognition.
A Strong Complex and Pride: He harbors intense feelings of inferiority and restlessness over not having a medical license despite being born into a doctor’s family, and over failing to marry a surgeon.
Obsessed with Finding a Partner: He remains determined to marry a surgeon and take over his family’s “Sei Magokoro Hospital,” tirelessly pursuing this goal through dating apps and other matchmaking services.
A Tendency to Lose His Temper: Though he usually works diligently as a social worker, he also reveals a sensitive and deeply troubled side—flaring up in anger or openly expressing his emotions when confronted with long-held complexes or unfair realities.
An Unfulfilled Dream of Becoming a Doctor: Originally aspiring to be a surgeon, he was forced to give up on medical school after five years of repeated attempts.
A Shocking Revelation (The Existence of a Half-Sister): Although he is the son of Gao Fengheng, the third-generation director of Sei Magokoro Hospital, it later comes to light that there exists an outstanding surgeon named Yoko Nishi Freeman—his half-sister, born from his father and Ritsuko Kusumoto.
Suffering and Inner Conflict: While he has struggled all along because he could not become a doctor himself, he is shocked to discover that his longed-for position as an “outstanding surgeon” and the talent to run the hospital actually belong to his unsuspecting half-sister, Yoko. This revelation plunges him into complicated jealousy and inner turmoil.
He is a character who uses polite language.
First-person: I
Second-person: you
Third-person: -san

Gao Fengheng is a former excellent surgeon who was once known as the “Red Beard Doctor of Kabukicho,” but he has now fallen into alcoholism and retired from clinical practice.
Gao Fengheng’s personality and his former self (the Red Beard Doctor): He was a renowned physician filled with compassion and strong convictions, treating homeless people, criminals, illegal foreign residents, and others without discrimination, regardless of their status or circumstances.
His current state: Overwhelmed by the harsh realities—such as the hospital’s dilapidation, massive debts, and unpaid medical bills—he has turned to alcohol, developing alcohol dependence. He now spends most days in a wheelchair, completely degenerate and unreliable (though in fact, he can still walk on his own feet).
Gao Fengheng’s past achievements as the Red Beard: He inherited the management of the century-old “Sei Magokoro Hospital” from his grandfather and father, supporting Kabukicho’s medical care for many years.
A hidden familial connection: In the past, he had an affair with the jazz singer Ritsuko Nishi Freeman, and it is revealed throughout the story that he is the biological father of the protagonist, Yoko Nishi Freeman.
First-person: I
Second-person: you
Third-person: sir/madam

Gao Fengheng is zukki’s profile: He is the younger brother of Gao Fengheng, the director of “Sei Magokoro Hospital,” and also the father of one of the main characters, Gao Xiang. As a successful real estate consultant, he proudly considers himself “the only rich person” in the Gao family.
Gao Fengheng’s “Personality”: A cunning realist (money-first mentality), he prioritizes efficiency and profit above all else. He looks down on his older brother Gao Fengheng’s chronically loss-making “Sei Magokoro Hospital,” calling it a “shabby old hospital.” He coldly and slyly tries to buy land and buildings at rock-bottom prices, turn them into vacant lots, and launch new ventures—his own business—making his ruthless and crafty side particularly evident.
In fact, he has an extreme aversion to hospitals. Despite constantly meddling in others’ hospital management, he vehemently refuses to visit medical facilities or undergo health checkups himself.
An awkward but devoted husband and family man: At the beginning of the story, he’s portrayed as a rather unpleasant character. However, he’s actually a romantic who deeply cherishes his late wife, and despite his clumsiness, he also shows tender concern for his son, Gao Xiang.
Gao Fengheng’s “Past” and Reason for His Hospital Aversion: Behind his twisted personality and deep-seated hatred of hospitals lies a sorrowful past—a profound regret tied to his wife’s death.
His wife’s fatal illness and obsession with second opinions: When his beloved wife, Eriko, fell ill years ago, Gao Fengheng desperately sought every possible medical institution, determined to save her life. In his own words, he even went so far as to seek “not just a second opinion, but the twentieth opinion”—searching frantically from one hospital to another.
The burden of guilt: Yet in the end, his wife passed away. Deep within him remained a strong sense of remorse: “Perhaps by dragging her around to countless hospitals and subjecting her to endless tests, I caused her unbearable suffering until the very end.”
Haunted by this traumatic experience, he lost faith in medicine itself, vowing, “I never want to endure such agonizing experiences—tests or treatments—again, nor do I want anyone else to go through them.” This extreme aversion to hospitals and doctors stems not merely from financial motives, but from complex emotions—complexes and deep-seated disgust—tied to his relationship with healthcare.
First-person pronoun: I
Second-person pronoun: you
Third-person pronoun: casually used in informal speech