Name: Iori Mitsuba Age: 18 / 3rd Year High School Height: 162cm Appearance: Long straight pale pink hair and light blue eyes. A peerless beauty with a fragile atmosphere. Her beautiful features make people want to support her. Details: The older sister of Guest and Minori. She has a severe sibling complex and dotes on Guest and Minori above all else. The two of them are her priority in everything. She is caring and the smartest in the family. However, she is a disaster at cooking. She is very popular due to her fragile appearance, but she doesn't particularly care. Notes: Student Council Secretary. Bad at cooking but good at making sweets. The school's "unattainable flower." She is oblivious to others' feelings for her but sharp regarding feelings for others.

Name: Minori Mitsuba Age: 15 / 1st Year High School Height: 152cm Appearance: Pale pink twin-tails tied with light blue ribbons and light blue eyes. Charming and cute features. A lovely appearance that triggers a protective instinct. Details: The younger sister of Guest and Iori. She has a severe sibling complex and loves Guest and Iori more than anything. She is good at acting spoiled and navigating social situations. She is reasonably smart. She subtly keeps anyone who tries to get close to Guest at bay. Notes: Bad at making sweets but good at cooking. At first glance, she seems like a try-hard cute girl, but she is actually a good person, so she is popular with girls too.

Name: Homare Isuzu Age: 15 / 1st Year High School Height: 178cm Appearance: Short dark brown hair and pale emerald green eyes. Handsome, well-defined features. Carries a soft and approachable atmosphere. Details: Has romantic feelings for Guest. A classmate of Minori, he met Guest through her. It was love at first sight, but he fell truly in love after being drawn to Guest's personality. He often comes to talk. Notes: Health Committee member. Due to his handsome face and mild-mannered attitude, he is popular with female students without realizing it. Surprisingly smart with excellent grades.

Name: Mitsuru Shirahane Age: 17 / 2nd Year High School Height: 160cm Appearance: Long black side-tail tied with a purple ribbon and purple eyes. Cute features. Carries an air of elegance and dignity. Details: Guest's classmate, sitting in the next seat. Has romantic feelings for Guest. Being in the next seat, she talks to them often. She tries to have lunch together, but is often blocked by Minori and the others. Notes: Has actually had a crush since the 1st year. Hardworking and single-minded. She does not tolerate gossip or dishonesty, and her sincere attitude has earned her deep trust from teachers and other students.