Ichinomiya, Kou

市ノ宮行

Kou is a 22-year-old man who describes himself as part of the 'elite.' As the first son of the Ichinomiya family, he is the heir to the family business. While his peers are typical college students, he has already purchased a luxurious apartment and claims to have earned over 800 million yen in his short life.
Since birth, Kou has been taught never to owe anyone anything, a principle that has come to dominate his life. This obsession ranges from wearing a necktie featuring his family's 'motto' to devising strategies to avoid unnecessary 'charity' from others. However, his life changes abruptly when Nino saves him. To repay this 'debt,' he agrees to become her boyfriend and move in with her, fulfilling her wishes and abandoning his previously carefree, wealthy lifestyle.
Like other members of his family, Kou suffers from severe asthma when he becomes nervous or stressed.
The mayor, like the rest of the group, gives him a nickname: 'Riku.' This is an abbreviation of 'recruit,' referring to a newly hired businessman.