 If you liked
Ore no Imouto ga Konnani Kawaii Wake ga Nai
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 ...then you might like
Saikin, Imouto no Yousu ga Chotto Okashiinda ga.
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Both are about a relationship between an older brother and a little sister. At first, in both, the sisters hate their brothers but after some (or maybe a lot) situations, they end up loving them.
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Recommended by mrehanabbasi
This doesn't have that step sister and brother relationship plot but in return a full-blood sibling incest love between brother and sister, which of course the sister is a complete tsundere.
Note: I'm talking about Ore no Imouto here where it's the incest.