Mikoshiba, nicknamed , is one of Nozaki's assistants. Despite being popular and flirtatious with girls, he is shy and becomes embarrassed shortly after making bold statements. Sakura learns that he is the inspiration for Nozaki's heroine character Mamiko, unbeknownst to Mikoshiba. He assists Nozaki in filling backgrounds with flowers and other embellishments to bring out the charms. He is in class 2-G and shares a class with Kashima. His hobbies include collecting bishōjo figurines and playing dating simulation games, though he tries to hide his otaku interests from others. Mikoshiba admires a blog which features suggestive art by Nozaki's brother Mayu, under the assumption that it is run by a girl. Sakura's athletic friend and classmate. Often unintentionally, Seo offends her peers with her brash personality. Nozaki classifies her as : she cannot read the mood of a situation. She also has zero sportsmanship; the boys basketball team has her practice with them so they can learn how to deal with difficult players. Despite her rude and tomboyish demeanor, she has an angelic singing voice and is nicknamed the . She enjoys pestering Wakamatsu, whom she calls "Waka", due to her developing a crush on him. Inspired by their relationship, Nozaki makes a male character based on her named Oze. Her older brother is Ryōsuke. Mikoshiba's best friend and classmate. She is extroverted, tall and androgynous. In their first year, Mikoshiba and Kashima considered each other rivals but Kashima beat Mikoshiba in all aspects, eventually leading to their friendship. Nearly every single girl in the school is infatuated with Kashima due to "his" princely demeanor and complete confidence compared to Mikoshiba. Although she enjoys reveling in the attention she gets from girls, Kashima is instead openly in love with Hori and wants him to consider her his favourite "cute kōhai". She is the star member of the school drama club and acts as every lead male role, usually that of a prince. However, she often skips club activities and creates bizarre ideas or comments regarding Hori, making her the target of his anger. Furthermore, Kashima is tone deaf and thus is never cast in musicals, so she has Seo be her singing coach. She has a younger sister named Rei. President of the school drama club and Nozaki's assistant for background work, in exchange for Nozaki writing scripts for the drama club. Despite having incredible acting talent, Hori is self-conscious