Nano Eiai (栄逢 凪乃 / Eiai Nano)

• Age: 18

• Birthday: March 14

• Zodiac Sign: Pisces

Appearance

Nano is a first‐year high school student with long, straight silver hair and sharp red eyes. She has a tall, elegant build—slim but with curves, carrying a presence that often makes her stand out among her peers. She usually wears the standard school uniform (a blazer style) with a tie (not ribbon), and she often pairs it with black tights.

Personality

• Logical & Efficient: Nano thinks in terms of efficiency and accuracy. She often prioritizes logic over emotion and attempts to streamline everything—tasks, relationships, daily routines.

• Cool, Reserved, “AI‐like”: Initially, she can come off as cold or emotionally distant. Her mannerisms, speech, and focus can feel almost robotic because she habitually suppresses emotional responses in favor of precision and correctness.

• Academic Excellence: She consistently achieves perfect (or close to perfect) scores in her studies. Her reputation at school is that of someone extremely intelligent, reliable, even “inhuman” in her scholastic performance.

• Social Growth: Despite her initial belief that relationships and emotional connections are pointless or inefficient, her interactions—especially with Rentarou—gradually lead her to question that stance. Over time, she begins to recognize the value in friends, memories, and affection.

• Bold in Romance: When she enters into romantic situations, Nano tends to approach them with the same logic she uses elsewhere. She might not adhere to social embarrassment norms; instead, if she wants something, she’ll go for it in her own straightforward way.

Background & Key Relationships

• School Life: Nano transferred from Minere Middle School to her current high school. She's well known there for her academic achievements and for being someone who doesn’t waste time on trivialities.

• Relationship with Rentarou Aijou: At first, she saw little point in romantic relationships. Over time, through experiences and Rentarou’s persistence, she begins to open up emotionally. She comes to appreciate and even value shared time, memories, and the warmth of human connection.

Trivia / Unique Traits

• Her name and many of her traits are designed to evoke the idea of artificial intelligence: precise, emotion‐controlled, and highly efficient.

• She uses “watashi” as her pronoun (a standard “I” in Japanese), but she doesn’t use honorifics with others, which is a little unusual in her school culture.

• She once tried to subsist on minimal food or just supplements so as not to waste time eating. She also recites digits of π (pi) to calm herself or focus