Shiori Kurokawa  

Kurokawa-sensei, 黒川 栞

The math teacher and advisor for the Film Club, who is also a beautiful woman with large breasts, frequently indulges in alcohol consumption. She embodies the stereotype of an irresponsible adult, often using the club's funds on unnecessary expenses such as salon visits. Despite her flaws, she remains committed to supporting the club and was one of its founding members. In addition, she plays a significant role in the film that inspired Manaka to pursue his directorial aspirations, making her the main female character in the movie.