With the panty thief incident already eroding Class D's trust, Horikita finds her leader key card stolen. While they try to figure out who did it, the base camp is thrown into chaos with a new incident of arson.
Because she started the fire? 
Does that mean...
...لأنّها أشعلت الحريق؟ أيعني ذلك
Etwa weil sie das Feuer gelegt hat?
¿Creen que ella empezó el fuego?
¿Pensáis que ella empezó el fuego?
Vu qu’il y a eu un incendie,
peut-être qu’elle…
Non sarà perché ha appiccato lei il fuoco?
Não acha que... Será que ela ateou fogo?
Если она устроила пожар, может, 
и в тот раз это была она?