Sana is the last person Tzuyu loves.

Chanyeol, like every day in his work as a fireman, goes to a fire on the outskirts of the city. He's in shock when he finds Baekhyun in a building, who requires immediate help. Yeol is fighting the time and the element, trying to save the most important person for him.  

A queer prequel on Howl's birth/origin as a glorious and accursed being.