Nagisa is a first year high school student who is shown to be a collected, considerate and humble girl.

Despite her considerate personality, she would resort to underhanded tactic to preserve her relationship with Naoya.

Nagisa initially was a girl of plain personality, up until her seeing Mukai Naoya and his dedication for Saki Saki. Impressed by the dedication one person could present, Nagisa starts dedicating herself in practice of sports and housework, and as she entered high school, has changed her hairstyle and used contact lenses instead of glass. Long practice of housework and physical workout however has caused her academic ability to fall behind.

(Source: Kanojo mo Kanoji Wiki)