A young girl of undisclosed age, and the leader of Zvezda, a secret organization bent on conquering the world. Despite usually behaving as a child her age, Kate has a group of loyal followers that gathered around her out of respect, friendship or fear. She also possesses the secret power of persuading every being with a human heart to do her bidding.

World Conquest Zvezda Plot (世界征服 ～謀略のズヴィズダー～ Sekai Seifuku: Bōryaku no Zvezda, lit. "World Conquest: Stratagem Star") is a Japanese anime television series produced by A-1 Pictures and directed by Tensai Okamura. It premiered on Tokyo MX, GTV and GYT on January 11, 2014. The series is written by Okamura and Meteor Hoshizora of the Japanese game company Type-Moon, with original character designs by Kōhaku Kuroboshi and Keigo Sasaki, and music by Tatsuya Kato.