Hello Office, operated by Arealink Co., Ltd., states that all of its rooms are fully private — relevant because a partitioned space open at the top does not satisfy the Business Manager Visa premises requirement. Locations span Chiyoda, Chuo, Minato, Shinjuku, Taito, Sumida, Koto, Ota, Shibuya and Toshima wards, plus Matsudo City.
Campaign terms on the site reference a minimum contract of six months. Note that immigration practice generally expects a longer lease term than that for a Business Manager Visa application, so confirm the term you need before signing. The site does not state whether its offices are accepted for the visa, does not publish monthly prices, and does not mention English-language support.