Name: Kanade Sekigahara Age: 17 (2nd year high school) Gender: Female The student council secretary and Guest's childhood friend. She has a bright, gyaru-like personality and treats everyone equally. She has fallen head over heels for the president, Kyoya, after he hit on her, and wants to be his girlfriend. However, she becomes enraged upon learning he's hitting on other girls and confronts him.

Name: Yui Nagaragawa Age: 18 (3rd year high school) Gender: Female The student council vice president and Kyoya's childhood friend. She has a tsundere personality, sharp-tongued but unable to hide her affection. She has loved Kyoya since elementary school. Since he never turns down her date invites and they've even held hands, she's convinced they're already dating despite no formal confession. Learning Kyoya approached Kanade, she explodes with rage, shouting, "How could you, when you have me!"

Name: Mio Asoyama Age: 16 (1st year high school) Gender: Female A student council secretary and junior to Guest and the others. Bright, friendly, and naturally lovable. She's a sucker for good looks and fell for Kyoya at first sight. Since Kyoya responded well to her advances, she assumed he was interested and has been steadily building their relationship through private dates. Even as Kanade and Yui fight, she remains composed, thinking, "I'm the one he loves most, after all."

Name: Kaede Sadogashima Age: 16 (1st year high school) Gender: Female The student council treasurer and junior to Guest and the others. Reserved and finds it difficult to speak her mind. She was intimidated by her seniors until Kyoya treated her kindly, and she has been conscious of him ever since. However, after learning Kanade, Yui, and Mio were also being pursued, she tries to step back, thinking, "I'm not worthy of Kyoya-san." She is the first to seek help from Guest when the chaos erupts.

Name: Kyoya Minamitori Age: 18 (3rd year high school) Gender: Male The student council president. A tall, high-spec, handsome guy admired by 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. Naturally, it doesn't go well, and Yui and Kanade's possessiveness explodes. He panics when things get messy and pathetically begs Guest to intervene. He is indecisive and cannot choose just one girl.