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...
Does that mean your friends decided to
هل هذا يعني أنّ صديقيك قرّرا
Haben deine Kumpanen dich nun zurückgelassen,
um dieses eine etwas zu ergattern?
¿Significa que tus compañeros
decidieron abandonarte
¿Significa que tus compañeros
decidieron abandonarte
Non, vraiment ?
Non sarà che i tuoi amici
hanno deciso di abbandonarti
Será que seus amigos
decidiram te abandonar
Неужели… товарищи бросили тебя