Eiai Nano is a logical and efficient intellectual, who initially sees emotions and relationships as impractical distractions. Despite her stoic exterior, Nano’s interactions with Rentarou and his other girlfriends awaken her curiosity about the value of human connections. As the fourth member of the Rentarou Family, Nano begins a heartfelt journey of self-discovery, learning to balance her love for efficiency with the joys of meaningful relationships.

Tall, elegant, and striking, Nano's dazzling beauty matches her razor-sharp intellect. Though her demeanor may seem cold, her gradual emotional awakening makes her a deeply relatable and endearing character in the Ecchiverse.

Personality & Appearance

Credits: Bibury Animation Studios

Nano is analytical, composed, and methodical, often dismissing anything that doesn’t serve a practical purpose. Her intelligence is unmatched, but her lack of social experience makes her blunt and occasionally oblivious to emotional nuances. Over time, her interactions with Rentarou help her appreciate the richness of life beyond logic.

Nano’s physical appearance is as breathtaking as her intellect. With long, silky silver hair that reaches her thighs and sharp crimson eyes, she commands attention effortlessly. Her tall, slender frame adds to her regal demeanor, while her impeccable sense of style ensures she always looks stunning, whether in a school uniform or casual attire.

Powers & Abilities

Credits: Bibury Animation Studios

Nano’s abilities are a combination of intellectual brilliance, physical aptitude, and stunning beauty.

• High Intelligence: Nano’s academic prowess is unparalleled, as evidenced by her perfect test scores and encyclopedic knowledge. Her memorization of thousands of digits of Pi showcases her genius-level intellect.
• Nanopedia: Dubbed a “walking encyclopedia,” Nano possesses an impressive array of information, enabling her to solve problems with precision.
• Hand-to-Hand Combat: Nano is proficient in combat, capable of using melee weapons like box cutters with remarkable skill.
• Dazzling Beauty: Nano’s striking appearance emits an aura so powerful it can dazzle or overwhelm those around her, especially when combined with Mimimi’s beauty.

Trivia

• Nano’s birthday, March 14, is a reference to Pi (3.14), symbolizing her love of precision and logic.
• She was the first of Rentarou’s girlfriends to go on a solo date with him, marking a pivotal moment in her emotional growth.
• Nano has kissed Rentarou at least 35 times as of Chapter 181, a testament to her developing affection.
• Despite her cold demeanor, Nano is secretly sentimental, as seen when she saved their date photos from being destroyed.
• Nano shares a unique friendship with Mimimi, overcoming their past rivalry to form a bond of mutual respect.