Originating from Dordtgard, Alpha is a magic doll designed for complex magical tasks. She serves as a maid at Emilia's estate and performs as a member of the idol unit IV KLORE. Her elaborate construction mimics human functions like eating and renders her indistinguishable from humans, featuring long pink hair in a side-tail, indigo-blue eyes, and standing 154 cm tall. She typically wears her school uniform with white socks and black Mary Jane shoes.

Alpha exhibits a cool, stern, and serious personality with minimal emotional expression. A flaw in her language circuit causes harsh or blunt speech, resulting in a brutally honest communication style. She displays deadpan snarker tendencies, particularly when teasing Emilia, often delivering pointed remarks behind an emotionless facade. Despite her stoic exterior, she demonstrates genuine care for Emilia, balancing her servitude with a self-perceived friendship.

She wields supernatural abilities tied to her nature, primarily hair manipulation magic. Alpha also shares the superhuman traits common to IV KLORE members: Super-Strength, shown by breaking through walls or doors for efficiency, and Super-Toughness, granting high resilience to physical damage. These traits align with her unit's composition, though her artificial nature distinguishes her from other members.

Her relationships are central. Alpha maintains fierce loyalty to Emilia, serving her directly; their interactions often involve friction due to Alpha's bluntness and Emilia's reactions, including frequent dope slaps. Within IV KLORE, she participates in group activities like bumpball matches and idol performances alongside members such as Salsa and Garnet. Her hobby involves collecting tea leaves with the Tea Research club, where she becomes notably vocal and adopts a self-styled "Magistrate of Tea" role during discussions. She dislikes rain and humidity. Her narrative focuses on her duties, group dynamics, and the contrast between her artificial nature and her loyalty to Emilia and IV KLORE.