stay in tokyo for 30th night....

we are group of 7 boys, wanna go to tokyo for 30th and 31st. we are currently in hamamatsu.
Plan is to visit tokyo for two days and then nxt for osaka n all. but major problelm is that we have not booked ny place for night stay in tokyo till yet. n nw we are not getting nythng.

ny suggestions wt to do? we gonna use ju hatchi kippu to travel.

Is thr ny possibility to stay for the night on tokyo station. is it allowed and most imp feasible in winter season?

Many hotels in Japan would have booked out months ago for New Years- it's not surprising that you aren't finding anything.

Trains run all night only on New Year's Eve- on the 30th Tokyo Station and all other stations will close around 1am, just like they usually do, so you won't be able to stay there.

What people do sometimes is stay overnight at 24 hour internet cafes- many of them have reclining or lie-flat chairs, private booths, free drinks and even showers. That might be your best bet.