Kanojo ga Onii-chan ni Nattara Shitai 10 no Koto - Vol. 1 Ch. 8

[MangaDex]

 

[MathMols]

Dont know why, but I like the shy version better

 

[AkaZePanda]

I'm here to laugh, not to kokoro...

 

[manabi]

Dont know why, but I like the shy version better

I think it's partly because she feels more normal in comparison and now that we've seen this it makes her crazy perverted self seem like an act. I like shy girls a lot in general, though, so I'm inclined to like her shy version due to that as well.