Mika Iwakura

As the seemingly grounded sibling in a fractured household, this sixteen-year-old student serves as the most relatable member of Lain's family. Though she frequently teases her younger sister about her peculiar behaviors with an apathetic attitude, she leads a typical teenage life centered on Shibuya shopping, dieting, and meeting her boyfriend at love hotels. Her presence provides a stark, mundane contrast to the surreal events unfolding around her.