Hachi originates as the spirit embodiment of the Hachiko statue at Shibuya Station, a symbol that has long watched over the district. His character draws direct inspiration from the historical loyal dog Hachiko, whose decade-long vigil for his deceased owner established him as a cultural icon of fidelity.

Reborn as Shibuya's official mascot character, Hachi guides visitors and residents while sharing the city's appeal. His existence commemorates the historical Hachiko's 100th birthday milestone, with records confirming his symbolic birth on November 1, 2018.

In present-day Shibuya, Hachi moves and interacts within the urban environment. He engages in leisurely daily activities among cheerful companions, prioritizing relaxed and lighthearted moments over dramatic storylines.

His core purpose remains anchored to his origins: observing and safeguarding Shibuya. This manifests through promoting local attractions and maintaining a gentle, watchful presence amid the bustling cityscape. While preserving a connection to the statue's legacy, Hachi exists independently as an active spirit within modern settings.

Narrative emphasis rests on his ongoing role as a friendly, low-key observer and promoter of Shibuya's daily life and culture.