[Adults only] A Japanese inn where adults can spend a luxurious time

I would like to know about Ryokan (Japanese inn) I can experience the atmosphere of Japan. Please tell me Ryokan (Japanese inn) or hotel where I can spend a luxurious time with adults only. I am planning to go from Tokyo to Nagoya, Osaka, and Hiroshima in 7 days. I would like a place that can be accessed on that route.

長野県・山梨県近辺で、雪景色が綺麗な温泉宿のおすすめを教えて下さい。

２月に雪景色が見れる宿に泊まりたいです。露天風呂やスタッフのサービスが素晴らしい、おすすめ宿を教えて下さい。大人４名で、予算は一人３万以内で考えています

Please tell me about a hotel near Tokyo Disneyland that offers a special experience!

I believe that the level of satisfaction at a hotel is determined by the attitude of the staff, so I would like to stay at a hotel in Japan that offers the best hospitality. Can you recommend a hotel near Disneyland that offers a special experience?

[Long-term stay] Where can I find a cheap hotel with good services near Tokyo Station?

An overseas business partner is coming on a long-term business trip. Since he is a VIP, I would like to stay at the best hotel possible. Please tell me a hotel near Tokyo Station that is convenient for sightseeing, allows long-term stays, and is reasonably priced.