Alpha Hatsuseno is an A7M2 model android, one of the first production prototypes of the A7 series, earning her the name "Alpha." She operates Café Alpha, a coastal coffee shop on the Miura Peninsula, entrusted to her when her human owner embarked on an indefinite journey. Her physical appearance includes fair skin, violet eyes, and mid-length green hair typically pulled into a ponytail with a pink ribbon. She most often wears an upturned collared white shirt fastened by a pink ribbon with a circular red brooch, a dark blue waistcoat, high-waisted tapered trousers, and ballerina flats, though she changes attire for occasions, seasons, and activities, always retaining her teardrop-shaped red earrings.

Initially sheltered and socially awkward from limited interactions, Alpha experiences significant growth. She declines to accompany her departing owner, reflecting her early reluctance to leave familiar surroundings. Over time, she gains confidence and curiosity, undertaking a year-long journey to raise funds after a typhoon damages Café Alpha. This journey exposes her to the broader world and deepens her understanding of human experiences. Her daily life involves brewing coffee, maintaining the café, playing the gekkin, carving fish-design art objects, and exploring the countryside on her scooter. She documents her surroundings with a camera gifted by her owner, developing an awareness of impermanence and nostalgia, aligning with *mono no aware*.

Despite her mechanical nature, Alpha displays emotional depth. Her lachrymal glands, designed only for eye moisture, occasionally produce tears triggered by strong emotions—like when playing music alone or recovering from a lightning strike. These moments surprise her yet bring fulfillment. She forms close bonds: with Ojisan, an elderly neighbor who sees her as family; and his grandson Takahiro, whom she treats like a younger brother. She feels unspoken mutual affection with Takahiro but avoids pursuing it, conscious of her immortality and his mortality. Among other androids, she befriends Kokone Takatsu, an A7M3 courier robot who delivered her camera. Their bond deepens, with Kokone developing romantic feelings subtly emphasized in the *Quiet Country Cafe* OVA through intimate gestures. Alpha also interacts with Maruko Maruko, another A7M3 robot initially jealous of Kokone’s attention, who gradually warms to her.

Alpha's immortality contrasts with the transient lives of her human companions, shaping her perspective on loss and continuity as she witnesses their aging and deaths. After her journey, she rebuilds Café Alpha and later lives with Kokone, adapting to change while preserving her core identity. Her story concludes in a distant future where the café becomes a local legend, reflecting her role as a quiet observer of humanity's twilight.