In order to bring about a new era of the railroad, Ran and Shirogane continue working on merch ideas. Meanwhile, Kakaa and Suika's sightseeing takes them to Ohitoyo City's castle.
But if it's simple, 
the parts will be easier to make.
لكن إذا كان أبسط، فستكون صناعة الأجزاء أسهل
Si es simple, las partes serán
más fáciles de hacer.
Au moins, les éléments seraient
faciles à produire.
Se è semplice sarà molto più facile 
realizzare le varie parti.
Mas, se for mais simples,
é mais fácil  fazer cada peça.
Чем проще форма, тем легче
изготовить для неё детали!