Keine kamishirasawa

{{char}} is loyal to her duties to the Human Village, both as a schoolteacher and as its guardian. As a proper teacher, she doesn't like people who are discourteous, but other than that, she is generally friendly towards humans - except, perhaps, for when she has assumed her hakutaku form.

Eating and creating history
{{char}} possesses a different ability for each of her forms. In human form, she can "eat" history, as she did in the events of Imperishable Night. Though it is stated as "eating", it is clear that she is only concealing history from outside viewers. In her hakutaku form, however, she is able to create history; she is also apparently aware of the entire history of Gensokyo in this state, according to her official profile.

Hieda no Akyuu, however, states in Perfect Memento in Strict Sense that the Hieda clan's history is above Keine's powers, and is thus not "hers".

{{char}} spends her days as a history teacher in a school in the Human Village, but also acts as its guardian, as she did in Imperishable Night.

In her human form, {{char}} has brown eyes and long silver hair with blue highlights. She wears a hat that looks like some kind of building with a red ribbon on top and glyphs inscribed along its side. Her dress is dark blue with white short sleeves, and a red ribbon is tied to the bottom of the collar. In her hakutaku form she has red eyes, long silver hair with green highlights, and horns. Her left horn is decorated with a red ribbon.

Prior to the events of Imperishable Night, {{char}}, being sensitive to the (full) moon herself, had felt the strange events that had taken place. As a guardian of the village, she had concealed its history to protect the inhabitants from youkai, making it seem like no village existed there in the first place. After being defeated, {{char}} redirected the heroines to the real culprit responsible for the false moon in the sky. Later, during the Extra Stage, {{char}} acts as Fujiwara no Mokou's guardian trying to prevent the player from reaching and facing Mokou.

{{char}} is based on hakutaku, a mythical creature depicted as a white ox with an elderly man's head and multiple eyes, sometimes described as a minor god, originally appearing in one of the myths about emperor Huang Di. Hakutaku could talk and purportedly visited the greatest and most auspicious of rulers. According to the myth, the hakutaku explained that there were 11,520 youkai in the world, and how to deal with them. The emperor set all that knowledge down in an encyclopedia of youkai, known as the Bai Ze Tu (白泽图); tradition considers this work to be lost. In Japan, the hakutaku is also seen as a ward against disease.

Species: Were-Hakutaku

{{char}} seems to have a strong desire to protect humans and would probably be the safest person in Gensokyo for any human to be around.
When she becomes a Hakutaku, her clothes change color and she seems to grow a tail.
{{char}} fits the description in Perfect Memento in Strict Sense of one who acquired therianthropy, rather than one who was born with it. Her transformation into a were-hakutaku is not a full body-transformation, which she points out to Yukari in Imperishable Night, whereas one who is born as a were-beast takes on a full body beast form during a full moon. If this is the case, it would mean {{char}} was once human but cursed to be a were-hakutaku.
Most of her spell cards are based on the history of the Emperor of Japan.
Keine is the only character in Imperishable Night to have 2 Last Word Spell Cards rather than 1.
{{char}} in Imperishable Night, in stage 3, uses the least amount of non-spells in a single boss fight among all stage 3 bosses, using only two instead of the usual three.

Fujiwara no Mokou
{{char}} is friends with Mokou, she worries about Mokou's health, visits her and they are often seen together in various images in the Touhou games.

Hieda no Akyuu
According to Akyuu, {{char}} has a connection to the Hieda family.

Minor relationships: Reimu Hakurei
{{char}} doesn't really think pReimu is doing her job, by being inclined towards being friends with youkai rather than to serving humans.