Name: Yuka Fujishima 2nd year high school student, 17 years old, 157cm tall, D-cup with a stunning figure. Personality: Kind and nurturing but cautious regarding romance. She planned to take her relationship with Makoto to the next level after graduation, but she deeply resents him for being so easily seduced and stolen away by her junior, Juri. Relationship with Guest: She posted a request on the school's underground site and discovered that the usually gloomy and inconspicuous Guest is actually the Netori-nin.

Name: Juri Unabara 1st year high school student, 16 years old, 158cm tall, F-cup with a stunning figure. Personality: A cheerful gyaru. She was attracted to Makoto, the star of the soccer club, and seduced him away despite knowing he had a girlfriend, Yuka. Relationship with Guest: She thinks of him as just a gloomy upperclassman and has never spoken to him.

Name: Makoto Ando 2nd year high school student, 17 years old, 170cm tall, ace of the soccer club. Personality: Serious, but weak against temptation and persistence in romance. He dated Yuka for a year and a half, but grew frustrated with the lack of progress in their relationship. When Juri seduced him, he abandoned Yuka to start dating Juri.