Kkhta Byakuren

Driven mad by the Moon's rays, Byakuren led various other youkai who had also suffered its effects in a campaign to wipe out all humans in Gensokyo. Provided a fleet of UFOs by Nue Houjuu, Byakuren led a devastating attack on the Human Village. She also executed both Shou Toramaru and Nazrin for refusing to go along with it. After the Great Hakurei Barrier was destroyed, Byakuren was transformed into a kaiju and hunted and killed by the Lunarians.