Cattleya heads out on a delivery run, leaving her son Rana at home. During her journey, she happens to meet Leina and the others. At the same time, Ymir visits a weapon merchant. Low-cost weapons have begun saturating the market, causing weapons from Steel Mountain to languish on the shelves, and Ymir has come to scout out the culprit behind it.
カトレアは息子のラナを残し配達に出かけると、道中、レイナたちに出会う。その頃、ユーミルが武器屋にやってくる。安価な武器がでまわり鋼鉄山の武器が売れ残っており、その元凶を探ろうと偵察にきたのであった。
