I am a professional consultant working in Seoul now.
I often go to Tokyo for the weekend to hang out with friends whom I have known back in Boston, USA. Usually I book a hotel but this weekend was the last minute confirmation so couldn't find any hotel.
I am friendly, polite and quiet. But I might be very late for Sat night( until for the last train hours) since I will hang out with my dear friends.
Hope your place is available.