There are subs for it too, as well as for the more recent 0.X shorts for the current show that were posted on Twitter. Check out one of the posts on r/Kemurikusa for the link to that.
The shorts are very helpful, establishing the sisters' personalities, special traits and the "meaning" each of them sees in life. They also sprinkle some hints regarding the lore.
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u/wowaka Feb 13 '19
There's an original? Also, that's creepy, must have been one hell of a memory to necessitate immediate suicide