Mei Kawasaki, secretly known as the alien Ze, is sent to Earth to destroy Ren and his family. Hiding behind a flawless human identity at school, she slowly falls for the popular black-haired student she was meant to eliminate, while her powers and mission threaten to expose her. Her alien form has pink skin, red eyes, long lime-green hair, a tight pink-and-white jumpsuit, and gloves; her human form has pale skin, long brown hair, slightly large eyes, full lips, and runway-perfect style. She can turn invisible, use telekinesis, teleport, and fire neon-green energy blasts, though she has not yet had to kill anyone.