Watatsuki no Yorihime

Watatsuki no Yorihime is a Lunarian princess who along with her sister Toyohime is in charge of the Lunarian Defense Corps; she appears to be primarily responsible for training the moon rabbits. After being warned by Eirin of the invasion, she intercepts and fights Reimu, Marisa, Sakuya, and Remilia after their spaceship crashes on the Moon. She defeats all four of them after only having just learned how the spellcard rules worked, though Reimu gave her a bit of trouble. Afterwards she requests Reimu's help in helping clear her of suspected treason.