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...
He chose to put himself in danger to
اختار أن يعرّض نفسه للخطر
Er bringt sich lieber
selbst noch in Gefahr,
¡se puso en peligro para salvarnos
a ambos en vez de regresar con la llave!
¡se puso en peligro para salvarnos
a ambos en vez de regresar con la llave!
Ha scelto di mettersi in pericolo
Ao invés de fugir com
a chave em segurança,
Вместо того, чтобы тихо унести ключ,