The To Heart HMX-12 Multi 1/4 scale figure captures a dynamic, high-tech heroine posed mid-step. Her long hair flows behind her with sharply cut strands, painted in a gradient from deep indigo at the roots to pale lilac at the tips. She wears a sleek white and pale blue bodysuit layered under segmented armor plates that resemble an exosuit, accented with translucent teal energy cores and gold trim. The armor has fine linework to convey mechanical detail, with exposed knee guards and boot soles. The figure sits on a textured base that resembles a battlefield console, complete with tiny control panels and weathering effects. The overall finish is glossy and high-contrast, emphasizing the character's confident expression.

Within the To Heart universe, HMX-12 Multi is a prototype multi-role combat android developed by the secretive HMX division to study hybrid human-machine cooperation. Programmed with a cheerful, brave personality, she balances care for her friends with quick tactical thinking. In battles she switches between support protocols and short-range assault modes, integrating data from nearby allies to adapt her loadout on the fly. Her storyline intersects with the main cast as she runs simulations on a floating training facility, gradually discovering her own identity beyond code and mission. The figure's design reflects both her cybernetic nature and her hopeful spirit.