Ариса Таканомия

Акико is the adopted daughter of Akito and his fiancée. She is a genius who at the age of 12 has already graduated from a renowned university and published several essays in professional journals. She is very capable of managing household tasks. In the fourth volume of the novel, she joins the student council. Akiko sees her as a potential romantic rival. Despite all this, Akito sees both of them as sisters. Akiko usually does not show outward signs of emotion, but this does not prevent others from admiring her charm.