Leerin meets with Linten and Savaris and is told that they will be her bodyguards for the meanwhile, because she is being targeted. Meanwhile, the 17th and 5th platoon both fight each other with the 17th platoon being victorious. Layfon gets sadden by their victories, but Nina seems overjoyed. The leader of the 5th platoon, Gorneo, seems to hold a grudge against Layfon. There is a party held for the victory of the 17th platoon. While everyone is enjoying their time, Layfon leaves the party early. At work, Nina discusses with Layfon about their victories and how she is very happy. Layfon tells her that he was never happy while fighting. There is an interuption fron the Student Council President. The student council president orders the 17th and 5th platoon to go to a lost city which was destroyed by the filth monsters and to look around to see any survivors. At the city, Nina realizes this city is Gandoweria and they fought against them two years ago with them winning. She is shocked that their city is in ruins. Layfon comments on how filth monsters are able to destroy about anything. Nina runs away to the place where they lost with Layfon chasing after her. At that place, the filth monster from the top was about to crush her, but Layfon saves her. At that moment, Gorneo arrives with Shante, his partner, and tells Nina about Layfon being a Heaven's Blade.
第一七小隊と第五小隊との練習試合で、レイフォンは第五小隊隊長ゴルネオと、赤い髪の少女シャンテと出会う。露骨に敵意を見せる二人を、無言で退けるレイフォン。しかし、レイフォンと、ゴルネオ・シャンテとの因縁に眼をつけたカリアンは、第一七小隊と第五小隊に特別任務を与える。それは、かつてツェルニと戦った都市の調査だった。
