Emi Izumi is a supporting character in the story, known as a senior at Otobane Academy. She serves as the president of the school's Film Research Club, a position that earns her the informal title of Miss President among its members. As a student, she is recognizable by her dark green hair, which she often wears in braids, and her purple eyes, typically framed by a pair of glasses.

Her personality is defined by a pragmatic and assertive nature, particularly regarding her responsibilities in the film club. She approaches filmmaking with a practical mindset, prioritizing conventional and manageable projects. This is especially true when preparing for events like an upcoming film festival, where she believes a straightforward approach is best. Consequently, she often finds herself at odds with the more experimental creative ideas of her fellow club member, Kyosuke Tsutsumi, and is not afraid to openly criticize his concepts, advising him to focus on "something normal".

A significant aspect of Emi's role is her complex relationship with Kyosuke. At the start of the narrative, they are a couple, but Emi initiates a breakup early on, stating that she no longer understands him. This decision leads to Kyosuke resigning from the Film Research Club. Despite the end of their romantic relationship, the two maintain a functional and cooperative friendship. Their dynamic shifts to a professional collaboration built on mutual respect for each other's skills, as they continue to work together on filming and editing tasks.

However, Emi's behavior suggests that her feelings for Kyosuke are not entirely resolved. She exhibits traces of possessiveness and irritation, particularly when Kyosuke's attention turns to other girls. A notable example of this occurs on a Christmas evening, when Kyosuke becomes distracted while filming another student, Kei Shindo. Emi reacts with visible annoyance and physically pulls him away, hinting at underlying, unacknowledged romantic feelings that complicate their interactions. Her leadership style is therefore a blend of professional assertiveness and personal vulnerability, as she navigates her unresolved emotions while trying to maintain a productive working relationship. Her primary motivation is to lead the film club effectively, but her personal history with Kyosuke remains a key influence on her actions throughout the story. Her development shows a transition from a romantic partner to an ex-girlfriend and professional peer, though subtle cues in her behavior indicate a lingering emotional attachment that she keeps largely unspoken. There is no information available regarding any special abilities or unique talents outside of her practical skills in filmmaking and club leadership.