My guy served me right that this is the summer season of Miyu.
Miyu carrying unspeakable secrets, and yet Illya remains dense on the matter whereas Kuro figured out Miyu holding something back.
Ok, but enough of the serious rambling, the girls went to the festival to see the fireworks and couldn't ask for fine slapstick moments like Miyu overanalytical disposition at figuring out a festival's funny moments, or Luvia and Rin pulling out dangerous pranks against each other.
BTW, wherever we go with Illya and company it's just turn where in Japan is Bazett, because she pops out anywhere doing a jack-o-trades in all works.