Haruko Amaya is a main character in the anime series Maken-Ki! She is a second-year student at Tenbi Academy and serves as the vice-president of the student council. Haruko is known for her strong sense of justice and is highly skilled in martial arts, often using a naginata in combat. She has a kind and caring personality but can be strict when it comes to enforcing the rules. Haruko has a long-standing friendship with the protagonist, Takeru Ooyama, and often finds herself caught in comedic situations due to her feelings for him.