Ok I have a theory about atr's shikoriori.
People theorized it to be about tanabata, but after looking at it closer, I think it's actually another yume hanabi-like song
Yay another Mafu song about your loved one dy1ng
The mv said the girl was destined to d1e but I'm not sure-

-what it's talking about or how that fits in so I might observe closer later
Signs that the girl may have d1ed:
•The lyrics in the last chorus were all in past tense
•When the last chorus ends, we see the boy standing alone
•Someone in the comments said the boy stood in front-

-of a gravestone, but it's unclear so take this one with a pinch of salt lol

Anyway thanks for reading this thread do share your theories if you have any