Jashin-chan accidentally warps herself into the past while making curry. The ice devil sisters Yusa and Koji return in summer and set up a shaved ice stand, where they very efficiently produce both the ice and the syrup themselves.
because they can create the ice
 and some of the syrup themselves.
… porque ellas mismas pueden
crear el hielo y parte del jarabe.
… porque ellas mismas pueden
crear el hielo y parte del sirope.
porque elas podem criar gelo
e algumas caldas sozinhas.
создавать и лёд, и сироп,
поэтому для них это выгодно.