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Artist's commentary
The return of Aya who can't win against the tree branch
Aya : "It's alright, just go home slowly...as long as I don't fly."
Momiji : "(Wonder why that person isn't wearing one?)"
It got torn from getting stuck with the tree branch after post #1494051, so Aya-chan is doing her best to cover it, but it's useless.
The image in which it got torn is in the erotic art section.