Ninako is the story's main female lead—a genuinely kind and gentle girl who develops feelings for Ren Ichinose. When she learns he's already in a relationship, she accepts it and decides to just be his friend, keeping her love quietly to herself. She's a solid student across most subjects, though she's open about struggling with math. What really defines her is how thoughtful and humble she is; she'll gladly return favors no matter how small. Later, when Andou asks her out, she turns him down—not harshly, but firmly. She explains that being with someone she doesn't love wouldn't be right, and she'd rather hold onto her genuine feelings for Ren, even if they'll never be returned. That's just who she is.
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