幼い頃、打ち捨てられた廃墟で迷子になったカナタは、 ひとりの女性兵士に助けられました。 その女性兵士の手には、金色に輝くトランペットが。 「軍人さんになれば、トランペットが吹けるんだ！」 ちょっとした勘違いをしたまま、カナタは喇叭手に憧れ、 軍への入隊を決意します。 新米兵士カナタが配属されたのは、セーズという街にある 小さな駐留部隊・第1121小隊。 着任当日、セーズは「水かけ祭り」の真っ最中で――。
Alternative version of Episode 1. A young girl named Kanata Sorami joins the army with the hope of learning to become a good bugler. She is assigned to a place called Seize, which is currently holding a festival where people splash each other with water. She is found by her superior, Rio Kazumiya, who gives her a bath and tells her about the legend of the Fire Maiden. While looking at a bell owned by Rio’s father, an owl steals it, forcing Rio to stop Kanata falling off the balcony trying to get it. As Rio participates in the festival, Kanata decides to search for the bell. She finds it hanging off a ledge, but when she goes to get it she falls into the lake, where she sees the golden skeleton of a winged creature. Stranded at the bottom of a canyon, she plays her bugle where she is responded to by Rio on her trumpet. She takes her to the Time Telling Fortress and plays the trumpet as the sun rises, introducing herself as Kanata’s bugling teacher.
