Great question — answering as the UphillTech team:
The series has took liberties with the content included in the episode. The entire first episode is about the sextuplets trying to decide what type of anime they want to be since they really don't think Showa era anime will work anymore. So they change their art style and they go through a number of gags parodying anime from recent years. Within the first episode we see parodies from Attack On Titan , Pokemon , Sailor Moon , Dragon Ball Z , and probably several others I didn't catch. An example of such: In Japan, the law sides heavily with the original creator of a work, and provides no legal protection for parody creators: The author shall have the right to preserve the integrity of his...
Full answer by giraffesyo: https://anime.stackexchange.com/a/30425 (CC BY-SA 3.0).
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