Mai Sakurajima is a central character in the anime series 'Seishun Buta Yarou wa Bunny Girl Senpai no Yume wo Minai'. She is a third-year high school student and a former child actress who is experiencing a mysterious phenomenon known as Adolescence Syndrome. Mai is initially invisible to those around her, a condition that begins to resolve when she meets the protagonist, Sakuta Azusagawa. Her calm and composed demeanor often hides her vulnerabilities. Throughout the series, Mai's relationship with Sakuta is a key focus, and she plays a crucial role in helping him solve various supernatural occurrences affecting other characters.