Kaori (香織) was Rin Hojo's arranged fiance at the time due to her family's business relationship. However, Kaori ended up falling for Ryosuke Takahashi and was determined to pursue a relationship with him despite her father's disapproval. In response, Rin verbally abuses her out of frustration, claiming her family will suffer as a result. In the end, Kaori commits suicide leaving both Ryosuke and Rin heartbroken with the latter becoming murderously vengeful against Ryosuke.
- Kaori is based on Aya Kiguchi (木口亜矢), a Japanese model. She was born at Kawasaki, Kanagawa.