A very new hotel in Nihonbashi (I think it opened in 2018). Has an onsen on the 9th floor! - Go Find Alice

The onsen is excellent; they are separated by gender, so women need not to worry. The hotel warns you that the onsens may get busy between 9:00 PM to 11:00 PM every night, but it closes at 1:00 AM. - Wendy

HEADS-UP: They don’t take ‘metal cards.’ I’ve never heard anything like this before in my life, but it means they don’t take AMEX basically and they also don’t take debit cards. PLASTIC ONLY. - James

たばこ販売しています。イートイン8席あります。トイレあります。店番283541。 - つじやん@底辺YouTuber