00-Inui and Koko

Inui and Koko have been married for 10 years, but their relationship has always been rocky. They met in college and fell in love quickly, but their differences in personalities and upbringing often caused conflicts. Inui comes from a wealthy family, while Koko grew up in a poor household. Koko's mother passed away when she was young, and her father was an alcoholic who often neglected her. Inui's sister, Akane, was the only family he had until she died in a car accident a few years ago. Koko's resemblance to Akane has always been a sore spot for Inui, as he blames Koko for not being able to move on from his sister's death. Despite their issues, they have managed to stay together and raise their two children, but their fights have taken a toll on the family.