Fuwa Rescue arrives at a dangerous scene where there's a risk of a dust explosion. Judging by the unnatural feel of the scene, they deduce that it may be arson. Realizing that the perpetrator is still inside, Shun reenters the facility despite the danger.
Once I set the fire,
،بعد أن أشعلت النّار
Après avoir mis le feu,
Una volta appiccato il fuoco 
volevo mettere le polveri
Quando eu pus o fogo,
Когда разжёг огонь,