katsura mimi
Classmate and friend in Fate/kaleid liner Prisma Illya. Seemingly a diligent girl with little presence at first, she later becomes obsessed with girls love and boys love to the point that she only sees the world in these terms.
Originator of a Japanese meme, "I think boys should be with boys and girls should be with girls for romance." (「男の人は男の人同士で、女の子は女の子同士で恋愛すべきだと思うの」)
Her first appearance was actually in Fate/hollow ataraxia; though she wasn't given her full name at the time.