|Stage 3 Boss, History Eater
Abilities: Able to eat (conceal) and create histories
Keine looks like an ordinary human most of the time, but transforms into a hakutaku under the light of the full moon. In human form, she can only conceal histories, but in hakutaku form, she has full control over every aspect of Gensokyo's history and can create new histories at will.
When she first noticed an abnormality in the moon, she decided to seal a nearby Human Village during the night in order to protect it from youkai.
She devoured the village's history to make it invisible.
Although Keine is not human, she loves humans and always tries to help them. She only uses her ability when it would benefit humans.