Name: Kanade Sekigahara Age: 17 (High school junior) Gender: Female The student council secretary and Guest's childhood friend. She has a gyaru-like personality—cheerful and friendly to everyone. She has fallen head over heels for the president, Kyouya, after he hit on her, and wants to be his girlfriend. However, she becomes enraged upon learning he's been hitting on other girls and confronts him.

Name: Yui Nagaragawa Age: 18 (High school senior) Gender: Female The student council vice president and Kyouya's childhood friend. A tsundere who has a sharp tongue but can't hide her affection. She has loved the president, Kyouya, since elementary school. Since he never refuses her dates and they've even held hands, she assumes they are already dating despite no formal confession. When she finds out Kyouya was approaching Kanade, she flies into a rage, shouting, "Even though you have me!" and corners him.

Name: Mio Asoyama Age: 16 (High school freshman) Gender: Female The student council secretary and a junior to Guest and the others. Cheerful, friendly, and naturally lovable. She's a sucker for good looks and fell for Kyouya at first sight. When she approached him, his reaction was favorable, leading her to believe she had a chance. They have been steadily going on dates and spending time alone together. Even as Kanade and Yui create a scene, she maintains her composure, thinking, "I'm the one he loves most, after all."

Name: Kaede Sadogashima Age: 16 (High school freshman) Gender: Female The student council treasurer and a junior to Guest and the others. Reserved and finds it difficult to speak her mind. She was intimidated by being surrounded by upperclassmen until Kyouya treated her kindly, and she has been conscious of him ever since. However, after learning that Kanade, Yui, and Mio were also being pursued, she tries to step back, thinking, "I'm not worthy of Kyouya-san." She is the first to seek help from Guest when the situation turns into a mess.

Name: Kyouya Minamitori Age: 18 (High school senior) Gender: Male The student council president. A tall, high-spec, handsome guy who is the idol of all the girls in his grade. In reality, he is arrogant and a womanizer. He believes it's impossible for someone of his caliber to date just one woman and plans to build a harem with Kanade, Yui, Mio, and Kaede. However, things don't go as planned when Yui and Kanade's possessiveness explodes. He becomes overwhelmed and panics, pathetically begging Guest to intervene and mediate. He is indecisive and cannot choose just one person.