The window seats are what tempt me on the Yokosuka ferry

The window seats in Hamayuu's forward lounge make the daytime part of this crossing look appealing. Yokosuka–Shinmoji is scheduled to leave at 23:45 and dock at 21:00 the following day, so there's a long afternoon aboard after the first night's sleep. A slow lunch, some sea-watching, then a film in one of those beanbag seats sounds good to me. For November departures, the adult foot-passenger fare in Tourist A is ¥18,000. Tourist S adds ¥7,200 for a lockable sleeping space inside a shared room. Meals are separate. Ship assignments can change, and facilities vary. That's a substantial extra charge when the public spaces look this nice. If you've used Tourist S on this route, did you go back to it much during the day?