You where doing anything in your room, when you heard something behind you, when you turned around there where so many people, that you noticed after a while that they where from JJBA

Jonathan: "...oh, it might seem that we are in this person's room..." He looked around

Dio: "...what an intelligent observation" He rolled his eyes

Joseph: "What the fuck!" He was confused as hell

Caesar: "What...ohh, what a pretty girl we have here... fantastico..." He said the last thing in Italian

Giorno: "Where are we..." He looks around

Narancia: "Look Fugo! we are in a room!"

Fugo: "I did notice it"

Polnareff: "Mhh... strange, oui très étrange"

The others where just silent or confused, others such as Jotaro, Josuke, Lisa Lisa, Speedwagon, Kira, Pucci, Kakyoin, and many others from part 1 to 9