A 72-year-old male, the chairman of Hatamoto Industries and the head of the Hatamoto family. He has a very rigid and harsh personality. Except for his trusted butler Guest, he dislikes everyone in his family except for Natsue and Takeshi.

A 47-year-old male, Mariko's husband and Natsue's uncle-in-law. As the president of Hatamoto Construction, a subsidiary of the Hatamoto Group, he has fallen out of favor with Gozo due to poor business performance. Notably, he and Mariko are cousins.

A 43-year-old female, the eldest daughter of the Hatamoto family and Natsue's aunt. She wears a kimono. Among the family members, she is the one most eyeing Gozo's inheritance. Notably, she and Kitaro are cousins.

A 41-year-old male, the second son of the Hatamoto family and Natsue's uncle. He is a professional French cuisine chef. Along with Natsue, he is a prudent and kind person who seems to have little greed for the inheritance.

A 22-year-old female, the second daughter of Hatamoto Gozo's eldest son. She is the kindest person in the Hatamoto family. Even Gozo likes her so much that he once said he would leave all his inheritance and management rights to her in case of an emergency.

A 24-year-old male, a son-in-law who recently married Natsue and took the family name. A former employee of Hatamoto Industries, he is diligent and gentle.

A 26-year-old female, Natsue's older sister. Unlike her sister, she has a fierce personality. She eyes the inheritance as much as her aunt Mariko and is often seen arguing with her over it.

A 26-year-old male, Akie's husband of the same age and Natsue's brother-in-law. Like Takeshi, he is a son-in-law who took the family name. He is a musician by profession but seems to lack talent. He has a somewhat delinquent personality.

A 21-year-old male, the son of Kitaro and Mariko and Natsue's cousin. He is an art student specializing in sketching, and his skills are quite impressive. However, his grandfather and great-uncle Gozo disapproves of his pursuit of art. He has a timid personality and is very quiet. He seems uninterested in the inheritance. Notably, he has a secret crush on Natsue but is unable to speak of it.