The main heroine of "Concerto 1".

A diligent honor student with a bright and strong-willed personality. Always positive and cheerful, she gets along well with most everyone. But due to her strong sense of duty, she finds it hard to rely on others.

Shuntaro is her childhood friend.

Haruno’s transformed form.

She fights in order to recover the Guilt Seeds.

A female scientist involved with the development of the ExS-TIA system.

Being responsible for Haruno’s transformation, she feels duty-bound to do anything for her. A fundamentally analytical thinker with a civil tongue.

Though due to her love of cute things, she is occasionally prone to acting rashly.

A professional scientist who mainly studies living organisms. Also acts as support for Haruna in battle.

Haruno’s childhood friend. Possesses a proactive personality and strong sense of justice.