Keine Kamishirasawa is a character from the Touhou Project series, first appearing in 'Imperishable Night.' She is a were-hakutaku, serving as the village guardian and school teacher in the Human Village of Gensokyo. Known for her protective nature, Keine has the ability to consume and conceal history during full moons, making her an enigmatic figure. She plays a supportive role in the series, helping humans coexist with youkai and safeguarding the village from supernatural threats.