Bunny Girl Senpai Characters

Role: Main heroine

Voice Actor: Asami Seto

A famous actress who suddenly stops being recognized by people due to Adolescence Syndrome.

Despite her calm and confident personality, she hides deep insecurities about being forgotten.

Intelligent, mature, and strong-willed — yet she shows a softer, caring side only to Sakuta.

Her bunny girl outfit became iconic because it symbolizes her invisibility — something bold, yet unseen.

Though she appears distant at first, Mai slowly opens up and shows her genuine emotions, especially her love for Sakuta.

Fun Fact: Her birthday is December 2. She loves strawberry milk and teasing Sakuta with witty remarks.

Role: Main protagonist

Voice Actor: Kaito Ishikawa

A high school student known for his blunt honesty and sarcastic humor.

He has visible scars on his chest from his own experience with Adolescence Syndrome.

Deeply caring and empathetic — always willing to help others with their emotional struggles, even when it hurts him.

His relationship with Mai is one of trust, respect, and genuine affection.

Though he seems chill, he’s incredibly observant and emotionally intelligent.

Fun Fact: He’s surprisingly bad at lying but great at trolling people. His catchphrase-like humor makes even the most serious moments funny.

Role: Supporting character / First-year student

Voice Actor: Nao Toyama

A cheerful and somewhat insecure girl who suffers from time loop-type Adolescence Syndrome.

Fears rejection and rumors, which leads her to fake a relationship with Sakuta.

Over time, she matures emotionally and learns to face her insecurities.

Though she develops feelings for Sakuta, she accepts the situation gracefully and remains a loyal friend.

Fun Fact: She uses cute slang and is often embarrassed about being emotional. Her arc focuses on self-worth and being true to yourself.

Role: Sakuta’s friend and the school’s science genius

Voice Actor: Atsumi Tanezaki

A calm, rational, and incredibly smart girl who helps analyze the science behind Adolescence Syndrome.

Despite her intelligence, she struggles with self-image issues and loneliness.

Her double-existence arc shows how self-hatred can literally split you in two.

She’s the “voice of reason” but also has a sarcastic, mature humor that balances the group dynamic.

Fun Fact: Loves physics and spends most of her free time in the science lab. Secretly enjoys teasing Sakuta and Kaede.

Role: Sakuta’s younger sister

Voice Actor: Yurika Kubo

Suffers from severe social anxiety after being bullied online — a side effect of Adolescence Syndrome.

She develops memory loss and becomes a completely different personality: shy, cute, and dependent on Sakuta.

Her arc is both heartwarming and heartbreaking, showing the pain of trauma and recovery.

Loves pandas, milk tea, and spending time with her brother.

Fun Fact: She writes goals in a notebook titled “Kaede’s To-Do List.” Her voice and behavior change drastically after regaining her memory.