Meetup in Tokyo today or tomorrow? (June 15/16)

Hello! 21M in Tokyo on a quick trip from Australia and up to my last few days. A friend I was supposed to meet with today is sick so I’m left with nothing to do and don’t want my time here go to waste. Was thinking of going somewhere alone tonight but I’m keen to meet some people this afternoon or tomorrow if anyone’s free? Apologies this is very last minute…