Suddenly, some real Ryuuguu Rena vibes explode from Kyon's little sister.

Sahaquiel said:
Suddenly, some real Ryuuguu Rena vibes explode from Kyon's little sister.

My thoughts exactly.

now I understand the reason of the crazy mind of Imouto-chan

ohhh... only a "uso da" tag... kyonko's sister is really imitating Rena with her "kana? kana?" too.

uso da indeed