Akino Iida is a supporting character in the anime W Wish, recognized for her intelligence, rational mindset, and distinctive appearance featuring long green hair and glasses. As a seventeen-year-old high school student, she is known for her academic excellence and diligent work ethic, always striving to perform at her best in all endeavors. Her classmates and teachers view her as efficient, booksmart, and highly reliable, often taking on leadership responsibilities such as serving as the class representative.

Akino approaches problems with a logical and analytical perspective, preferring to rely on reason rather than emotion when navigating challenges. This rational nature defines much of her outward demeanor, presenting her as composed and focused. However, beneath this pragmatic exterior lies a deep sense of loyalty and care for those close to her. She is introduced as a childhood friend of the protagonist Junna, and her commitment to supporting him is a consistent aspect of her character. Her role in the story is primarily as a supportive figure, though she participates actively in school events, such as organizing the class activity for the Cherry Blossom Summer Festival, where she proposes a haunted house theme and later seeks decorations for it.

In terms of relationships, her connection with Junna is particularly significant. As his childhood friend, she is a constant presence in his life, offering assistance and stability. Her loyalty extends to others in their social circle, and she is shown collaborating with classmates like Tomokazu. A notable scene occurs during festival preparations when Akino injures her leg at night; Junna carries her, an event that sparks jealousy in another character and highlights the underlying emotional dynamics within the group. This moment also contributes to her personal development, as she begins to confront and understand her own romantic feelings for Junna. This internal journey creates a conflict between her logical approach to life and the emotional reality of her affections, adding depth to her character as she navigates this struggle.

Regarding abilities, Akino does not possess any supernatural or combat-oriented skills. Her notable strengths are her intelligence, organizational skills, and efficiency as a student and class representative. She is portrayed as someone who can be relied upon to complete tasks competently, whether academic or related to school festivals, and her rational thinking allows her to assess situations clearly. Her development throughout the series focuses on her emotional growth and the reconciliation of her analytical nature with her heartfelt desires.