Liza is a human female who works at Roufas's Restaurant in Koorong and is an agent of Gradius. Liza is at the top when it comes to learning Martial Arts techniques among the cast of female humans and sparks them easily. Among the male humans, Fei-on is her equal when it comes to the Martial Arts learning rate. Strangely enough, despite Annie being the resident blade user of Gradius, Liza actually sparks most Sword techniques more easily than her friend, according to her internal learning rate data.
Liza offers to accompany Red to Shuzer's Base after he has dinner with Annie.
Liza refers Riki to Annie when she overhears that Riki needs to sneak into Despair. She does not join Riki.
If Lute recruited Roufas, Liza is in the restaurant. She does not join Lute.