In the aftermath of a war that left them adrift, advanced mechanical dolls, the Automata, find solace in the Black Cat Cafe of the Imperial Capital's fifth ward. Reawakened to serve in graceful kimonos, these beings grapple with their past burdens, clinging to a sense of duty unresolved. Amidst these enigmatic figures is Haizakura, a recently reset Automata devoid of memories, except for one constant: her love for music. With a penchant for melodies and unyielding curiosity, Haizakura embarks on a journey alongside her fellow Automata, unraveling mysteries, embracing newfound purposes, and harmonizing their existence through the power of song.