Sato Sasara-style Navi Character

January 10, 2024 is an inferred announced-cutoff proxy, not a verified final-access day.

Companions & roleplay · Closed; date inferred · 10 Jan 2024 · Originally announced deadline · Not the verified service cutoff · Frontier Works Inc.

The record

A separately named browser AI character-chat experience for free multi-turn conversation and Frontier Works product and event guidance.

Operator at shutdown: Frontier Works Inc. Company source
Launched: 21 Dec 2023Launch source
Service end: Closed; date inferred · 10 Jan 2024Originally announced deadline · Not the verified service cutoffClosure source

Verification notes

Shutdown: January 10, 2024 is an inferred announced-cutoff proxy, not a verified final-access day. The original operator release gives that planned last day but expressly allows earlier closure if response capacity is exhausted. Its current title affirmatively confirms completed service end, so status is not inferred only because the deadline passed. Actual cutoff day/hour/time zone and the first completed-closure update date are unknown. A separate public browser domain and the full open-conversation/information task establish a named app, not only a website sidebar or raw rinna/OpenAI API. Continuing CeVIO speech products, the Sato Sasara character IP, Frontier Works business and upstream models are excluded. The icon is the sourced operator mark; no CeVIO character artwork is copied. Closure source
Dates checked: Verified 23 Oct 2026
AI functionality: AI functionality source
Launch: The operator labels December 21, 2023 at12:00 as the public release; the hour’s time zone is not expressly named and is not silently normalized to UTC.
Location: Japan · Tokyo. The original operator release expressly identifies Frontier Works headquarters in Tokyo’s Toshima ward. Use the operator-headquarters city fallback, not either codeveloper’s office or a server location. GeoNames supplies a representative Tokyo city point rounded to two decimals, not a street address or ward centroid. Location source · Coordinate source