Ai Hayasaka is a beautiful girl with blonde hair tied up on the left side and striking blue eyes. She adapts her appearance to various roles, donning a maid outfit for her duties and modifying her school uniform. Ai possesses four distinct personas, including a level-headed maid deeply devoted to her mistress, a lively rule-breaker at school, a charming maneater who leads men on, and a crybaby butler. Despite these personas, Ai is truly kind-hearted and loves her mistress, Kaguya, like a sister.