I am planning a RTW including Narita for late January and wanted to get the collective wisdom on what to expect.

• Flying LAX-NRT in JL First arriving T2 at 16:45 on one ticket.
• Connecting to a 22:30 EK departure T2 to DXB on a separate ticket, also in First.

From colleagues, pax that try to pull this kind of stunt appear to be detained on the arrival flight until someone comes to figure out what to do with me how to get rid of me. Would JL coordinate with EK for some type of handoff?

Once I'm back in departures, except for Starbucks, is anything open after 6pm... lounges, restos, bars, etc.. since the only two evening departures appear to be EK and QR. EK Lounge is temporarily closed and JL.com says their lounge(s) close at 6:30pm.