Liza Rainbow is a former model who has embraced an unconventional lifestyle, identifying as an atheist hermit and a member of international somber supergroups that reject traditional societal norms and standards. She is known for her distinctive appearance, particularly her hair highlights that resemble a rainbow, and her tattoos. Liza's lifestyle is characterized by a lack of personal hygiene, a non-monogamous approach to sex (she is bisexual), low empathy, and moderate misanthropism, which combines a dislike of humanity with a nihilistic worldview. She also possesses heterochromia, a condition where her eyes are of different colors. Liza resides in the "hikikomori region," a term that refers to individuals who withdraw from social life, often due to reasons such as mental illness, misanthropy, or a desire for solitude. Her social mask skills allow her to navigate social interactions despite her reclusive tendencies. Liza's lifestyle and beliefs challenge conventional societal values, advocating for autonomy, selective empathy, and a rejection of traditional norms such as money, jobs, relationships, family, hygiene, politics, and religion.