The Berns sisters are a pair of conjoined twins who are close and love to sing. Their bodies were conjoined to each other at birth. Despite having separate consciousnesses, they share one lower body. Even after the mutation that turned them into a Lurkein, their conjoined figure and love for singing still remained. Usually, the older sister in the front will sing the main vocals while the younger sister in the back will handle the vocal harmony. Any creature that hears their singing voice can’t help but be carried away by their enthralling tunes.