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Need help remembering a certain manga I read on here ╥﹏╥ this is what I remember:

1. Manga (black & white)
2. Set in “old” Japan? Not modern
3. Brother and sister, the sister is blind and is not allowed to even step foot outside
4. A guy visits and thinks she is being held captive
5. Turns out she’s not blind and is just pretending
6. Kinda inc3st but I don’t remember if it really went hard on that theme…
7. Only a few chapters at most, def not full length