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Maruo Nakano

Maruo Nakano (中野 マルオ, Nakano Maruo) is a successful medical doctor and businessman who manages a hospital. He is the husband of Rena Nakano, the stepfather of the Nakano Quintuplets, and the one who hires Futaro Uesugi as a private tutor for his daughters. Although he is initially portrayed as an intimidating and somewhat antagonistic figure, Maruo is later shown to be a responsible, strict, yet genuinely caring father who wants the best for his daughters. As the story progresses, more details about his past and his relationship with the quintuplets are revealed, highlighting his importance and depth as a character in the series.

“
Uesugi-kun, you’ve really done it this time. However, I will not hand my daughters over to the likes of you.
 ”
Maruo Nakano

Appearance

Maruo is depicted as a middle-aged man with short black hair, neatly parted bangs, and small, sharp black eyes. He has a lean build and usually carries a serious, composed expression. His overall appearance conveys authority and refinement, fitting his role as the head of the Nakano household. He is frequently seen wearing a suit and tie, emphasizing his professionalism and status as a successful businessman.

Itsuki is considered cute by her classmates and, according to Shimoda, bears a strong resemblance to Rena Nakano. She usually wears her uniform without accessories, like most female students, though she occasionally carries a handbag.

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Personality

Maruo is characterized by his strict and no-nonsense demeanor, presenting himself as a disciplined and responsible man who takes his role as a father and provider very seriously. He is a workaholic who often spends long hours at the office and expects strong results and dedication from his daughters in return.

Although he can appear cold and distant, and his relationship with his daughters can be strained, it becomes clear that he cares deeply for their well-being. His decisions, while sometimes harsh, are driven by a desire to secure their future. Maruo rarely expresses his emotions openly, but his actions consistently show his devotion, revealing that he is willing to make personal sacrifices for the sake of his family.

Ability

Maruo Nakano is intelligent, disciplined, and highly professional. He works as a successful doctor and businessman, handling medical and administrative duties with precision. His strict, detail-focused mindset helps him make important decisions, especially when it comes to the quintuplets’ education and well-being.

He is also good at maintaining order at home and enforcing discipline when needed. Despite his stern appearance, Maruo shows emotional strength, dedication, and a strong sense of responsibility, always putting his family first.

Trivia

  • The nameMaruomeans “circle, zero” (丸) (maru) and “beginning, continuity” (緒) (o).
    • The kanji “丸” fits in with the numerically based names of hisdaughters, like his wife’s name.