The Nendoroid The Eminence in Shadow Beta captures the character’s playful yet formidable presence in a compact, chibi form. Standing about 100 millimeters tall, this figure follows the classic Nendoroid style with a posable, pre-painted design and replaceable expressions. It includes a standard face, a love-struck face, and an excited face to convey a range of moods. Interchangeable parts expand posing options: front hair parts with glasses to emphasize intellect, a long sword for action scenes, and a pen and notebook to hint at her strategic planning. Additional optional parts enable different poses from the series. A base is included for stability, since the figure cannot stand on its own. Sculpted by Royce Entertainment, painted by Shichibee (Matsuda Model), cooperation from Matsuda Model, planned/produced by KDcolle (KADOKAWA Collection).

Beta is introduced as one of the primary aides to the anonymous mastermind who aims to build a legend by operating from the shadows. In the series, she joins Shadow Garden, the secret organization devoted to carrying out the mastermind's careful plans. Beta uses intellect, observation, and loyalty to support operations, often drafting plans, gathering intel, and coordinating missions behind the scenes. Her arc blends humorous moments with suspense as she balances personal growth and group duty, proving indispensable during encounters with rival factions and unexpected twists. Across episodes, Beta's dedication turns careful scheming into visible results, illustrating the theme that true power can bloom from preparation, teamwork, and an unyielding drive to shape history from the shadows. Through her journey, the audience witnesses a thoughtful, formidable character who complements the ensemble.