The person hiding in the mirror was Illuso from the Hitman Team. Fugo ends up being dragged into the mirror by Illuso's Stand, Mirrorman. Fugo then summons his own Stand, Purple Smoke. Despite Giorno wanting to find Fugo, Abbacchio decides to go look for the key, since that was their mission. However, once Abbacchio finds the key, he also gets dragged into the mirror world...
I don't feel anything anymore.
لم أعُد أشعر بأي شيء
Ich spüre schon
gar nichts mehr.
Ya no siento nada.
Ya no siento nada.
Je ne ressens plus rien.
Ormai non sento più niente.
Não sinto mais nada.
Я уже ничего не чувствую.