Nyaa-tan, the protagonist and embodiment of the feline in the Chinese zodiac, yearns to be a member of the Chinese zodiac. Despite her simple and forgetful nature, she concocts extravagant plans to achieve her ambitions. After encountering Takeru Amato, a solitary figure in Akihabara, Nyaa-tan moves in with him, triggering a gradual transformation that propels her towards her ultimate aspiration.